The complete Wargame Handbook is one of the most iconic publications of the 70’s, by James F. Dunnigan himself. It’s been revised a number of times, and although a bit outdated now with the surge of computer wargaming, this is still a must read for the Grognards and a must have in a library.
Good initiative from James to have given it away to the community for free now!
=> Find it on The Strategy Page, moderated by James Dunnigan
=> Download the PDF from Limey Yank Games (good job guys, thanks)
You can find other books from James Dunnigan on this page.