I dedicate this book to:

My parents, who have embraced the passion of a restless kid when he decided to become a programmer, and taught him that family is the most important thing.

My brothers (Lorena, Nicolas, Pedro, Ignacio) for accomodating the kid that would not play with them so he could spend countless hours on the computer (or in a notebook when a computer wasn't available). Pedro: thank you for teaching me what life is all about, I miss you every day.

My wife Claudia, who is my soulmate and a partner for life; who has taught me the meaning of love; whose happiness has become my most important objective; and without whom, nothing, nothing at all would be possible. You are the reason why I am, my dear princess.