rstanding the foundations of Human Design, this book remains one of the most widely used and loved of Human Design books. Rooted in the original language of Human Design, Circuitry is practical and useful for beginners, describing each gate and channel in the Bodygraph in user-friendly everyday language. It is also a rich resource for advanced students, as it lays out in one place all the many layers of keynotes behind the Human Design Bodygraph.