The author's experience as a Moodle developer enables him to combine a simple, descriptive how-to approach with enthusiastic insights into the rich potential of customizing Moodle according to your needs. The chapters gradually build up your skills and by the end of the book you will be confident enough to customize Moodle on your own. This book is written for technologists who are interested in expanding Moodle's functions through programming, either for their own organizations or to contribute to the open source project. You should be familiar with Moodle's basic technologies: PHP, MySQL ,and HTML/CSS.