Ramon Lull's Book of Knighthood and Chivalry
ISBN 1-891448-03-X
Chivalry Bookshelf
In addition to Geffroi de Charny's Book of Knighthood, we also have this other period source for information about knighthood and chivalry. Ramon Lull was a former knight, turned sorta-pseudo-quasi monk/friar. He had changed careers before writing this book, and I think it shows. Where Charny seems to be taking care of his own, Lull comes off as more finger-pointing. The difference is subtle, but that's the impression I received.
This book is a real drag to read. It's short, and yet I still haven't brought myself to finish it. Charny's book is much more interesting, despite its verbosity (as stated in the foreword, Charny never uses one word where three will suffice). But Lull's writing strikes me as being almost like a grade-school book report in comparison.
Still, it's interesting from the standpoint of being a period source.