This book contains a collection of techniques and tips, allowing the reader to understand both harmony and improvisation of Gypsy Jazz. The author creates a simple yet intuitive path of study, beginning with an overview of its history, from its creator Django Reinhardt. The book covers the basic musical concepts, the accompaniment techniques such as "la pompe", the main arpeggios such as sixth arpeggios, and the harmonic analysis of 15 of the most popular jazz songs, such as, "All of me", "Autumn Leaves", "Minor Swing", "Daphne", "Djangology", "Django's Tiger", "Sweet Georgia Brown", "Nuage" and others.