1) Secrets, in which the information derives its principal value from its being secret. 2) Products, in which the work is the item for sale. 3) Assets, in which the work provides the business with a competitive advantage of some sort. 4) Ancillary, in which the work plays a ‘supporting’ role internal to the operation of the business." Copyright is most important for numbers 2 and 3; trade secret law is most important for number 1,