Fantastic book! It explains the roots; the development of BJJ from the Carlos Gracie side of the Gracie Family!
Reila Gracie did a great job and spent years of deep research to write this Epic Book! Also, Reila Gracie has individual chapters for each of the Gracie Family fighters, explaining their roots and fighting background. As a part of the Carlson Gracie Sr. Elite Team; I strongly recommend this book to anyone interested on BJJ and Combat Martial Arts! I read it in Portuguese but I am going to buy the English version as well!