This book is the result of a research process that involved many people over four years. We want to express here our gratitude to the friends and colleagues as well as the institutions that made this journey possible. First we would like to thank all the authors that took part in this project for their excellent contributions contained in this volume. This book would not be possible without your commitment, patience, and dedication throughout this process. Each one of you made this project better. We also must acknowledge our debts to the local research group based in