Gracie and Renzo Gracie fighters are two huge Brazilian Jiu-Jitsu, so I was very anxious to see the book containing some of their best techniques. The completeness is unattainable as this sport is rich, we must judge the book on a whole and its ability to convey the spirit of Brazilian jiu-jitsu. The author is perfectly tactical aspects of this discipline and demystifies some of the clichés that are attached to it. If nothing beats practice, the purity of the techniques proposed in the book will make a reference book for many beginners.