Where can I find information on training manuals used by companies?
A good place to start for this search is ABI/INFORM Global (Proquest) database.
Go to the green Advanced tab. In the first search box type Training manual. Then select Document title from the adjacent drop-down menu. Check the boxes for full-text documents only and Scholarly journals, including peer-reviewed.
Another type of search is to type Training in the first box, Manual in the second search box, and select Subject from the two adjacent drop-down menus.
Please contact your campus librarians if you need further help.