Proofreading may include incorporating author's alterations, checking page proofs, verifying computer codes, and flagging art and page references. Providing one or more of a variety of services that integrate design and content to turn an edited manuscript into a published document. Others may move from proofreader to copy editor to senior editor to acquisitions editor to publisher. Still others stop at a point at which they feel challenged and content. Those seeking entry-level positions will find that employers usually choose candidates who have taken some initiative to gain experience.
Many editors start their careers as employees of publishers or typesetters.
Some become freelancers after holding one or more in-house positions. Most seasoned editors have had some in-house experience. Learning the steps in producing a publication, a vital part of the editor's education, is difficult if you have never been on a publication's staff. Editors with larger publishers may not be exposed to as much variety, but they may receive more supervision and training. For those who want more independence, freelancing can be stimulating and lucrative if the editor has talent, stamina, and a little luck.