During the writing of this book, I had some difficulties, stress, and doubts; but they were quickly annihilated by the laughters of my son, Noah, and the love of my wife, Sandrine. I'd like to thank them again and again. Without them, I wouldn't have done it.

And of course, the support of my parents and sister who have always been there for me, and even more during the writing of this book.

My last thoughts are dedicated to my best friend Tof and to a Brazilian (R.C.) who gave me some personal additional notes on the book.