I started studying astrology in my spare time nearly four years ago. Most of what I've learned has come from following the discussions of friends and reading books they've recommended.
Tyl's work is high on their list of reference materials. After reading Solar Arcs, it is easy to see why. Tyl's writing style is user friendly. His clear, well-defined examples make it a valuable resource for skilled astrologers & students as well.
I look forward to reading Synthesis & Counseling in Astrology next.
Tyl's work is a must-have for any astrologer wishing to add precision and clarity to predictive work. He uses many case studies and examples (including a very courageous and honest assessment of his own chart) to illustrate solar arc technique. He demonstates the theory behind the technique, and shows how amazingly simple and yet astounding it is.