The Nicholson File Company (now owned by Cooper Tools) used to put out a pamphlet called “File Filosophy.” The book contains a short history of files, how files are made, types of files, terminology, and most importantly, the variety of methods employed when filing. The application of filing to a variety of tasks is covered, including several pages on sharpening saws and other tools. Rotary files (burs) are covered as well. They printed many editions of the pamphlet over the years. I figured it would be easy to come by, but I had to use my Google-fu to come up with some links.
The book is available used on Amazon and Alibris (and there may be a copy lurking at your local second hand book shop). Google books doesn’t have it scanned, although they do have the earlier work, “A treatise on files and rasps descriptive and illustrated” that is also worth reading. I finally found a scan on WEWilliams site (excellent stuff there). Nicholson does have a PDF of The Guide to Files and Filing, but at 14 pages compared to the 50 of File Filosophy, it lacks much of the information.
In any case, it’s a nice pamphlet to read, certainly has one of the best titles ever, and is a great addition to any book shelf or hard drive.