Technical writers make scientific and technical information easily understandable to a nontechnical audience. They prepare operating and maintenance manuals, catalogs, parts lists, assembly instructions, sales promotion materials, and project proposals. They also plan and edit technical reports and oversee preparation of illustrations, photographs, diagrams, and charts. Copy writers write advertising copy for use by publication or broadcast media, to promote the sale of goods and services. They sometimes contract to complete specific assignments such as writing about a new product or technique.
Editors frequently write and almost always review, rewrite, and edit the work of writers.
However, their primary duties are to plan the contents of books, magazines, or newspapers and to supervise their preparation. They decide what will appeal to readers, assign topics to reporters and writers, and oversee the production of the publications. In small organizations, a single editor may do everything. In larger ones, an executive editor oversees associate or assistant editors who have responsibility for particular subjects, such as fiction, local news, international news, or sports, or who edit one or a few publications. In broadcasting companies, program directors have similar responsibilities.