Who are your favorite authors on the subject of martial arts?

My most favourite book is "The Way of The Warrior- Martial Arts and Fighting Styles From Around the World." It was written buy Chris Crudelli. Its not a book that explains techniques or teach you a tyle or phyloshy of a style. Its a book of every single martial art out there. Well probably not 100% but they got all the most popular ones. It features more than 300 styles in the book. It explains what it is, the founder how how they learn. Its a pretty cool book..