Document:

THOMAS INDUSTRIES INC.
                           NON-QUALIFIED STOCK OPTION
                     FOR OFFICERS OF THOMAS INDUSTRIES INC.

         THIS OPTION, Granted this ____ day of ____________, by THOMAS
INDUSTRIES INC., a Delaware corporation (the "Company"), to
(the "Employee");

To further the purpose of the Company's Amended and Restated 1995 Incentive
Stock Plan (the "Plan"), and in consideration of the services required under
paragraph 2 to receive benefits hereunder, the Company hereby grants this option
to the Employee on the terms hereinafter expressed:

     1.  Option Grant. The Company hereby grants to the Employee a non-qualified
         stock option to purchase a total of ____ shares of Common Stock of the
         Company at the option price of $_____ per share, being at least equal
         to 100 percent of the fair market value of such shares on the date
         hereof.

     2.  Time of Exercise. This option may be exercised (in the manner provided
         in paragraph 3 hereof) in whole or in part, from time to time after the
         date hereof, subject to the following limitations:

                 a. This option may not be exercised during the first __ year(s)
              from the date hereof. Thereafter, it may be exercised to a maximum
              cumulative extent of __ percent of the total shares covered by the
              option in the third year from the date hereof, __ percent of the
              total shares in the fourth year from the date hereof, and ____
              percent of the total shares in the fifth year from the date
              hereof. After the end of the fifth year from the date hereof, this
              option may be exercised in full. Notwithstanding the above, this
              option shall become immediately exercisable in full upon:

                (i) The death of the Employee; or

                (ii)The occurrence of a "change of control" of the Company. A
                    change of control of the Company shall be deemed to occur
                    upon the happening of any of the following:

                    (a)  Any person (as that term is used in Sections 13(d) and
                         14(d) of the Securities Exchange Act of 1934, but
                         excluding the Company, its affiliates and any qualified
                         or non-qualified plan maintained by the Company or its
                         affiliates) becomes the "beneficial owner" (as defined
                         in Rule 13d-3 promulgated under such Act), directly or
                         indirectly, of securities of the Company representing
                         30 percent or more of the combined voting power of the
                         Company's then outstanding securities; unless the Board
                         of Directors determines that such event does not
                         constitute a change of control;

                    (b)  During any period of two consecutive years, individuals
                         who at the beginning of any such period constitute the
                         directors of the Company cease for any reason to
                         constitute at least a majority thereof unless the
                         election, or the nomination for election by the
                         Company's shareholders, of each new director of the
                         Company was approved by a vote of at least two-thirds
                         of such directors of the Company then still in office
                         who were directors of the Company at the beginning of
                         any such period;

<PAGE>

                    (c)  Shareholder approval of a combination of the Company
                         (by merger, share exchange, consolidation, or
                         otherwise) with another corporation and, as a result of
                         such combination, less than 75 percent of the
                         outstanding securities of the surviving or resulting
                         corporation are owned in the aggregate by the former
                         shareholders of the Company; or

                    (d)   The Company sells, leases, or otherwise transfers all
                          or substantially all of its properties or assets to
                          another person or entity.

              (iii) The Employee's termination of employment on account of Total
                    and Permanent Disability, as defined in the Thomas
                    Industries Retirement Savings and Investment Plan or the
                    Employee's retirement after 20 years of service and
                    attainment of age 55.

                    b.This option may not be exercised:

                    (i)  More than three months after the termination of the
                         Employee's employment by the Company or a subsidiary
                         for any reason other than retirement, Total and
                         Permanent Disability, or death; or

                    (ii) More than twelve months after termination of employment
                         by reason of Total and Permanent Disability or death;
                         or

                    (iii) More than 36 months after termination of employment by
                         reason of retirement; or

                    (iv) More than ten years from the date hereof.

                    c. This option shall not be affected by leaves of absence
              approved in writing by the President of the Company or by any
              change of employment so long as the Employee continues to be an
              employee of the Company or of a subsidiary. Nothing in this option
              shall confer on the Employee any right to continue in the employ
              of the Company or of any of its subsidiaries or to interfere with
              the right of the Company or of such subsidiary to terminate his
              employment at any time.

     3.  Exercise of Option. This option may be exercised only by appropriate
         notice in writing delivered to the Secretary of the Company at
         Louisville, Kentucky, and accompanied by:

         a.   Either (i) a certified or cashier's check payable to the
              order of the Company for the full purchase price of the shares
              purchased together with any required tax withholding, (ii) the
              tender (or the certification of ownership) of shares of Common
              Stock of the Company already owned by the Employee for a period of
              at least six months and having a fair market value equal to the
              option price and the required tax withholding, or (iii) a
              combination of the foregoing; or (iv) delivery of a properly
              executed exercise notice, together with irrevocable instructions
              to a broker to promptly deliver to the Company the amount of sale
              proceeds from the options shares to pay the option price and any
              required tax withholding; and

         b.   Such other documents or representations (including, without
              limitation, representations as to the intention of the Employee,
              or other purchaser under paragraphs 4 and 5, to acquire the shares
              for investment) as the Company may reasonably request in order to
              comply with securities, tax, or other laws then applicable to the
              exercise of the option. The Employee may satisfy any tax
              withholding obligation in whole or in part by electing to have the
              Company retain option shares, having a fair market value on the
              date of exercise equal to the amount required to be withheld.

                                       2

<PAGE>

     4.  Non-Transferability of Option. This option is not transferable by the
         Employee otherwise than by will or the laws of descent and
         distribution, and is exercisable, during the Employee's lifetime, only
         by him. At the discretion of the Compensation Committee of the Board of
         Directors (the "Committee"), this option may be transferred to members
         of the employee's immediate family, or trusts or family partnership for
         the benefit of such persons, subject to terms and conditions
         established by the Company.

     5.  Death of Employee. If the Employee dies during the option period, this
         option may be exercised in whole or in part, and from time to time, for
         the period described in paragraph 2(b) hereof and in the manner
         described in paragraph 3 hereof, by his estate or the person to whom
         the option passes by will or the laws of descent and distribution.

     6.  Adjustment Provisions. In the event that there is any increase in the
         number of issued Common Stock of the Company without new consideration
         to the Company therefor, by reason of stock dividends, stock split-ups,
         or like recapitalizations, the number of Common Stock which may
         thereafter be purchased under this option shall be increased in the
         same proportion as said increase in issued Common Stock. In such event,
         the per share purchase price specified in paragraph 1 above shall be
         reduced so that the total consideration payable to the Company for the
         increased number of Common Stock remaining subject to this option shall
         not be changed by reason of such increase in number of shares.

         If, during the term of this option, the Common Stock of the Company
         shall be combined or be changed into the same or another kind of stock
         of the Company or into securities of another corporation, cash,
         evidence of indebtedness, other property, or any combination thereof
         (the "Acquisition Consideration"), whether through recapitalization,
         reorganization, sale, merger, consolidation, or other similar
         transaction, the Company shall cause adequate provision to be made
         whereby the Employee shall thereafter be entitled to receive, upon the
         due exercise of any then unexercised portion of this option, the
         Acquisition Consideration the Employee would have been entitled to
         receive for Common Stock acquired through exercise of such portion of
         the option (regardless of whether or to what extent the option would
         then have been exercisable) immediately prior to the effective date of
         such transaction. If appropriate, due adjustment shall be made in the
         per share or per unit price of the securities purchased on exercise of
         this option following said transaction.

         The terms and conditions of this option may also be subject to other
         adjustments in accordance with Section 11 of the Plan in the event of
         an extraordinary dividend or other distribution or the occurrence of
         any other unusual or extraordinary corporate transaction involving the
         Company's Common Stock or assets, as set forth in Section 11.

     7.  Applicable Plan. This option is granted under and subject to the terms
         and conditions of the Company's 1995 Amended & Restated Incentive Stock
         Plan.

         IN WITNESS WHEREOF, The Company has caused this option to be executed
on the date first above written.

                                                     THOMAS INDUSTRIES INC.

                                                     By
                                                        ------------------------CONSULTING AGREEMENT
                              --------------------

         CONSULTING AGREEMENT dated this 13th day of December 2004 by and among
ProQuest Company (the "Company"), VEL Acquisition Corp., a Texas corporation
("Merger Sub"), Voyager Expanded Learning, Inc., a Texas corporation
("Voyager"), and Randy Best ("Best").

                                  WITNESSETH:

         WHEREAS, Best is employed by Voyager as its Chief Executive Officer.

         WHEREAS, pursuant to an Agreement and Plan of Merger dated as of
December 13, 2004 ("Merger Agreement"), Voyager will be merged with Merger Sub,
which is an indirect subsidiary of the Company.

         WHEREAS, upon the completion of the merger, the parties desire to
terminate Best's employment relationship with Voyager and to enter into a
consulting relationship with the Company and Voyager upon the terms and
conditions set forth in this Consulting Agreement and to bind Best to certain
restrictive covenants in favor of the Company and Voyager as set forth in the
Non-Disclosure, Non-Solicitation and Non-Competition Agreement (the "Non-Compete
Agreement") attached as Exhibit A.

         NOW, THEREFORE, in consideration of the mutual premises and agreements
contained herein, and intending to be legally bound hereby, the parties agree as
follows:

         1. Effective Date. This Consulting Agreement shall be effective upon
completion of the merger of the Merger Sub with Voyager, which is defined as the
"Effective Time" in the Merger Agreement (the "Effective Date"). Simultaneously
with the execution of this Consulting Agreement, Best shall execute the

<PAGE>

Non-Compete Agreement. In the event that the merger does not close by such time
as contemplated by the Merger Agreement, the Consulting Agreement shall
terminate and become void.

         2. Consulting Period. The Company and Voyager agree to retain Best as a
consultant to provide the services described in Section 4 below from the
Effective Date until the second anniversary of the Effective Date (the
"Consulting Period"), as provided in this Consulting Agreement, subject to
earlier termination under Section 6 below.

         3. Services as a Director. The Company shall endeavor to cause Best to
be nominated as a director of the Company's Board of Directors, and, if elected,
Best will serve as a director for a term of not less than two years. Best shall
receive compensation for services provided as a director as per the Company's
director compensation program as in effect from time to time. Best shall be
required to travel to attend Board meetings, and shall be entitled reimbursement
for travel expenses as per the Company's reimbursement policies applicable to
all directors.

         4. Consulting Services. During the Consulting Period, Best shall
perform such duties as reasonably requested by Voyager and the Company
(including--where requested by senior management--attending meetings in person),
including assisting the Company and its senior management in their efforts (a)
to retain and develop client and referral sources, (b) making major sales calls
at the federal, state, and district levels, (c) developing of a "new account"
strategy, (d) developing of a government relations strategy at the federal and
state level, (e) introducing and transiting contacts for Voyager's business and
(f) performing transition and integration services related to the businesses of
the Company and Voyager with Best's named successor at Voyager and the Company's
senior management team as reasonably requested (collectively, the "Consulting
Services"). Best agrees to be available up to eight days per month for the first

                                      -2-

<PAGE>

six months of the Term to perform the Consulting Services, and up to sixteen
days every three months during the last eighteen months of the Term to perform
the Consulting Services. The Consulting Services will be performed at such times
as are reasonably requested by the Company after reasonable consultation with
Best. Best shall provide these services in Dallas, Texas, provided that Best
shall be required to travel for business and client meetings as reasonably
requested by the Company.

         5. Fees. As compensation for the Consulting Services, the Company or
Voyager shall Best $40,000 per month for the first six months of the Term and
$26,666 per month for the last eighteen months of the Term. Fees shall be paid
monthly in arrears. Best shall provide his own health and other insurance
coverages. Best shall not be entitled to participate, and shall not participate,
in any employee benefit plan providing benefits to Company or Voyager employees,
whether presently in force or adopted subsequent to this Consulting Agreement.
All reasonable and necessary business expenses incurred by Best in the
performance of the Consulting Services shall be promptly reimbursed by the
Company in accordance with the Company's standard expense reimbursement policies
applicable to independent contractors, provided that such expenses are approved
in advance by the Company.

         6. Termination. This Consulting Agreement may terminate prior to the
second anniversary of the Effective Date due to any of the events described
below. In the event that this Consulting Agreement terminates under this Section
6, Best shall only be entitled to accrued but unpaid consulting fees under
Section 5 above as of the termination date and compensation attributable to his
services as a director under the Company's director compensation programs.

                  (a) This Consulting Agreement shall terminate immediately upon
the death of Best.

                                      -3-

<PAGE>

                  (b) The Company may terminate this Consulting Agreement for
any reason upon providing sixty (60) days' advance written notice to Best.

                  (c) Best may terminate this Consulting Agreement and be
released from providing services to the Company for the remainder of the
Consulting Period only for "Good Reason," which shall be found if, and only if,
the Company engages in a material breach of its obligations under this
Consulting Agreement which is not remedied by the Company within forty five (45)
days after receipt of notice thereof given by Best. Notwithstanding the
foregoing, it is agreed between the parties that "Good Reason" shall include a
change in the management of ProQuest Company that results in Alan Aldworth no
longer being employed by the Company. A termination of this Consulting Agreement
by Best for "Good Reason" under this Section 6(c) shall be accomplished by
giving the Company's Chief Executive Officer, General Counsel and Senior Vice
President of Human Resources written notice of the termination, setting forth in
reasonable detail the specific conduct of the Company that constitutes Good
Reason. An event shall not be deemed to constitute Good Reason if Best fails to
deliver such notice of termination for Good Reason within twenty days of Best's
actual knowledge of such event.

         7. Status. Best acknowledges and agrees that his status at all times
during the Consulting Period shall be that of an independent contractor, and
that he may not, at any time, act as a representative for or on behalf of the
Company or Voyager for any purpose or transaction, and may not bind or otherwise
obligate the Company or Voyager in any manner whatsoever without obtaining the
prior written approval of an authorized representative of the Company or
Voyager. Best hereby waives any rights to be treated as an employee or deemed
employee of the Company or any of its affiliates for any purpose following his
termination of employment at the Effective Date. The parties hereby acknowledge

<PAGE>

and agree that the compensation provided for in Section 5 shall represent fees
for Best's Consulting Services as an independent contractor, and shall be paid
without any deductions or withholdings for taxes. Best further acknowledges that
the Company and Voyager make no warranties as to any tax consequences regarding
payment of compensation under this Consulting Agreement, and specifically agrees
that the determination of any tax liability or other consequences of the payment
set forth above is his sole and complete responsibility and that Best will pay
all federal, state and local taxes, if any, assessed on such payments.

         8. Governing Law; Consent to Jurisdiction. This Agreement shall be
governed by and construed and enforced in accordance with the laws of the State
of Texas, excluding any conflicts or choice of law rule or principle that might
otherwise refer construction or interpretation of this Consulting Agreement to
the substantive law of another jurisdiction.

         9. Assignability. Best may not assign or transfer this Consulting
Agreement or any of Best's rights, duties or obligations hereunder. The Company,
Voyager or both may assign this Consulting Agreement to any affiliate thereof or
to any person or entity acquiring all or substantially all of the assets (by
merger or otherwise) of the Company, Voyager or any such affiliate so long as
such person, entity or affiliate assumes the Company's obligations hereunder.

         10. Entire Agreement. This Consulting Agreement and the Non-Compete
Agreement constitute the full and complete understanding and agreement of the
parties hereto with respect to engaging Best as a consultant to the Company and
Voyager. This Consulting Agreement may not be changed or amended orally, but
only by an agreement in writing signed by the party against whom enforcement of
any waiver, change, modification or discharge is sought. (a) Notice. All
notices, requests and other communications to any party hereunder shall be in
writing (including facsimile transmission) and shall be given,

                                      -5-
<PAGE>

                  if to the Company or Voyager, to:

                  ProQuest Company
                  300 N. Zeeb Rd
                  Ann Arbor, Michigan 48103

                  Attention:  Todd W. Buchardt
                  Facsimile:  (734) 997-4040

                  with a copy (which shall not constitute notice) to:

                  McDermott, Will & Emery LLP
                  227 West Monroe Street, Suite 4700
                  Chicago, Illinois 60606
                  Attention:  Grant A. Bagan, P.C.
                  Facsimile:  (312) 984-7700

                  if to Best, to:

                  R. Best Associates, Inc. 2200 Ross Avenue, Suite 3800 Dallas,
                  Texas 75201 Attention: Randy Best Facsimile: (214) 468-0717

                  with a copy (which shall not constitute notice) to:

                  Carrington, Coleman, Sloman & Blumenthal, L.L.P.
                  200 Crescent  Court, Suite 1500

                  Dallas Texas, 75201
                  Attention: Jim Watson

                   Facsimile: (214) 840-0113

or such other address or facsimile number as such party may hereafter specify
for the purpose by notice to the other parties hereto. All such notices,
requests and other communications shall be deemed received on the date of
receipt by the recipient thereof if received prior to 5 p.m. in the place of
receipt and such day is a business day in the place of receipt. Otherwise, any
such notice, request or communication shall be deemed not to have been received
until the next succeeding business day in the place of receipt.

                                      -6-

<PAGE>

         11. Divisibility. If any one or more of the provisions of this
Consulting Agreement or any application thereof shall be invalid, illegal or
unenforceable in any respect, the validity, legality or enforceability of the
remaining provisions and other application thereof shall not in any way be
affected or impaired.

         12. Survival. All of the Company's and Best's obligations hereunder
shall survive the termination of this Consulting Agreement.

         13. Counterparts. This Consulting Agreement may be executed in
counterparts, each of which shall be deemed an original, all of which shall
together constitute one and the same Consulting Agreement.

         IN WITNESS WHEREOF, the undersigned have duly executed this Consulting
Agreement as of the day and year first above written.

                                            /s/ Randy Best
                                            ------------------------------------
                                            Randy Best

                                            PROQUEST COMPANY

                                            /s/ Alan Aldworth
                                            ------------------------------------
                                            By:  Alan Alworth
                                                --------------------------------
                                            Its: Chief Executive Officer
                                                --------------------------------

                                            VOYAGER EXPANDED LEARNING, INC.

                                            ------------------------------------
                                            By:
                                                --------------------------------
                                             Its:
                                                --------------------------------

                                      -7-

<PAGE>

                                            VEL ACQUISITION CORP.

                                            ------------------------------------
                                            By:
                                                --------------------------------
                                             Its:
                                                --------------------------------

                                      -8-

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