A Book By One of the Vendee Commanders
It is only in French, it was in English a few years ago. Here is the name of it: Vie De Charles-Melchior-Artus, Marquis De Bonchamps, Général Vendéen
There is another book that is well done on the whole of the French Revolution: The Terror: The Merciless War for Freedom in Revolutionary France Reprint Edition by David Andress (Author)
Check these books out to learn about the war.