The new book put out by Kid Pelligro and Rodrigo Gracie titled The Path to the Black Belt is an excellent referance manual for experienced and new people alike. If you like grappling and BJJ then this is a book that you should think about purchasing. I particularly like the vital technical insights that have been missing from many of the other BJJ books out there. If you enjoy grappling then this is one book you might want to pick up.