Evolutionary computation can be viewed as a set of techniques conceptually inspired by biological processes. Among that techniques, one of the most used are Genetic Programming. They follow the Darwin Law's to find the solution of a problem. The overall objective of this book is to provide a ¿roadmap¿ with which to find the way toward finding computational solutions to various problems. To this end, a general introduction is presented of the methods and techniques associated with the Genetic Programming technique. In this context, this book ought not be viewed as an exhaustive or comprehensive analysis of the techniques presented herein. Instead, it should be considered as a reference that introduces the terminology, key concepts, and basic bibliography that can serve as a starting point such that the reader will be better equipped to subsequently pursue more deeply those topics that may be of special interest. In particular, this book is designed for those people who are interested in new approaches to problem solving as well for researchers who hope to initiate research directions along the lines of evolutionary computing or closely connected areas.