What are the jobs in a publishing company?

Job functions in publishing companies depend on the size of the company. Larger companies will need assistant/junior editors, editorial staff, copy-editors, commissioning editor, sales and marketing staff, graphic designers, IT technicians (becoming particularly important thanks to the development of the e-book), picture researchers and proof-readers. Smaller companies may weld some function together to create one job role. Publishers of academic journals may also need expert in certain subjects.