In terms of content (that sometimes decipher because we sometimes doubt that this book was translated into French), it is very good.
We learn a new approach to the training of force simply with his body weight. Aside from a drawbar, a balloon (basketball / football) and ball (tennis or baseball style) book requires no equipment.
The training style is very surprising at first but effective over time, in fact the author is not trying to make you bodylbuilder but men with a force capable of defending themselves in dangerous situations (he created this book in prison). The final movements are simply unattainable for most people.
Pulls an arm are dreaming as the force required for this exercise is enormous.
Good book, absolutely not set values by the translator who did a disastrous job.