For centuries, Abu Ma'shar's The Book of Religions & Dynasties was known in Latin as On the Great Conjunctions, and dominated European mundane astrology. It holds a leading place in distilling Persian and Arabic thought on "historical astrology," the use of Saturn-Jupiter conjunctions and their triplicity shifts in defining eras of politics, religions, and civilizational trends.

In this new translation from the Arabic, Benjamin Dykes introduces students to mundane astrology generally but especially Abu Ma'shar's own interpretive and predictive techniques., which are adapted from his own natal practice. These techniques are also taught in Dykes's own Traditional Natal Astrology Course. Included are conjunctions, ingresses, mundane profections, directions, and fardars, among others.

The Book of Religions and Dynasties represents a new phase in the Astrology of the World series, which will focus on practical techniques and mundane chart delineation. It is a must-have for mundane astrologers of all types.