I would like to thank Isabel, who supported me during this project. She has always believed in me and pushed me to find the time to invest in this book. Without her, this project would have been much more difficult than it turned out to be.

I would also like to thank Laura, my sister and colleague and the coauthor of this book, for always being positive about where you can reach with effort, discipline, and confidence in your own capabilities. She is the one who encouraged me to write this book.

A special thanks to Josep and Josep Maria. They have given me the opportunity to evolve professionally. They have always believed in me and given me the confidence needed to take my own steps and carry out my responsibilities.

The final thanks go to all my colleagues and customers, and also to all the people who helped me learn by posting questions on the forums. You have all contributed in developing me into the professional I am today.