The Art of Chart Interpretation by Tracy Marks. Why this book for May 2018? 1. Because we haven't had an astrology book of the month for a while. 2. Synchronicity. After toying with the idea of this book, I came across an interview with the author, which resonated. 3. With Uranus ingressing to continue reading...
The Book of the Month feature is intermittent, though we have a nice selection here from October 2017-December 2018. Take a look. They are mostly astrology related. Others broaden horizons and prompt deep reflection, which grow more helpful astrologers.