How I never managed to read this gem of a book, I'll never know. I heard about it through an OPA webinar for members with Alexandra Karacostas, whose topic was the Uranus in Taurus ingress. Your Sun Sign as a Spiritual Guide by Swami Kriyananda As you probably know there are quite a few people 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.