This book builds on David's pioneering work in harmonics, and further develops the themes presented in his groundbreaking Harmonic Charts, which inspired my own interest and made the subject accessible to a new generation of astrologers. If we genuinely believe that the chart mirrors our journey through life then we need to look more closely at what may be held within precise patterns that are often overlooked. In exploring the continuous interplay of planetary relationships David brings his understanding of number symbolism to a whole range of aspects, offering insights informed by spiritual, poetic and mathematic disciplines. His research into the significance of Number extends the work of Addey and Harvey and confirms his position as one of the key exponents of harmonic astrology. Mike Harding, author of Working with Astrology (Consider).