First, I have to acknowledge Aaron, Anil, and Enrique for inviting me to participate in this book. It has been a pleasure to return to work with them. Also, I want to thank the Subsea Mechatronics team for the great experience working with heavy, underwater robots; we have grown together during these years. I have to mention LPA Fabrika: Gran Canaria Maker Space for their enthusiasm in preparing and teaching educational robotics and technological projects; sharing a workspace with kids can be really motivating.

Finally, I have to thank my family and my girlfriend for their big support and encouragement in every project I'm involved in. I want to dedicate my contribution in this book to them.