This is a companion guide for those who build software and are about to embark on (or who are already on) an Agile journey. No prior knowledge of Agile is needed. This book fills in the gaps. For those at the very beginning of their journey, this book teaches the foundations to start your Agile practice. For those who are already on the path, this book is designed to give you ideas on where you may be heading. Like any good guide, it gives tips to move you out of your comfort zone and push your thinking to become truly Agile.