Whilst I do my best to keep an eye on new books and reprints that become available, I can't guarantee that I won't miss a few. As such this is a list of publishers who regularly publish books that may be of interest.
The Chivalry Bookshelf :04/01/2002
The Chivalry Bookshelf is a small publishing house dedicated exclusively to bringing old WMA manuals and treatise back into print.
The Fir Mountain Press :12/04/2002
Not so much a repeat offender as a source for Thibault's Academy of the Sword.
Older books on fencing and duelling can be of particular use in classical and historic fencing, especially if written before the advent of electronic scoring equipment. Alibris and Bookfinder are large American sites. Scimitars is a UK bookshop specialising in books to do with swords and swordplay. All three sites have a fab selection.
The Fencer's Companion - Leon Bertrand :11/07/2001
This book was originally written in the 1930's before fencing had made the switch to using electric scoring equipment. It is simply, but well, illustrated. Written in a remarkably efficient yet easy to understand style, suitable for the absolute beginner and experienced fencer/coach alike. This book takes you through all the most useful techniques, explains the basic terminology and even suggests some useful practice routines.
The Duel - Robert Baldick :11/07/2001
A detailed account of duelling through the ages, numerous accounts of real duels as well as a fluid narrative that fills in the legal and environmental changes that contributed to the different styles of fighting and weapons used. A very enjoyable well put together book.
For more book reviews see J.Christoph Amberger's site, Swordhistory. The site itself is designed to provide information about his book listed above, but it also contains a number of interesting articles on the various aspects of swordplay ane EMA. It also has some nice links and a set of book reviews.