This book is a transcript of The Channels Course taught by Ra Uru Hu in Taos, New Mexico April 8-19, 1999, and is the most extensive work on this topic.
Including over 40 hours of lectures on all the channels in a Human Design chart, Ra also gives an in-depth view of how each channel adds to the overall nature of the circuit of which it is part. He discusses at length what quality each channel demonstrates about the entire circuit.