This guide published by the USDA Forest Service is an incredible resource for everything ax-related, from beginner to advanced (and it's free!). Filled with succinct and wise passages, clear photos and helpful diagrams, the book explains the in's and out's of felling, limbing, splitting, chopping, bucking, and hewing. Plus, no-nonsense tips on how to swing, grip, sharpen, maintain, select and purchase the right ax for the right job. The subtitle is right: practical.
An Ax to Grind: A Practical Ax Manual
1999, 68 pages
Available from USDA Forest Service in HTML
Also available from Clarke Green as a PDF
Also available from the USDA Forest Service in PDF