I have many Sabian Symbols books and have found excellent insights in all, including this one. I believe Lyn Birkbeck did a thorough job with this vast subject. I especially like how she organized her thoughts and resonated with many of her interpretations. However, I was not impressed with how the book was bound. After less than a year, the glue has dried out and the book is literally falling apart. Thorsons, a trademark of HarperCollins Publishers did the author a great injustice. If you are drawn to the Sabian Symbols in Astrology and shoddy binding is something you can live with, check out this book.