Tetrabiblos

The *Tetrabiblos* is a foundational work of astrology written by the ancient Greek astronomer and astrologer Claudius Ptolemy in the 2nd century AD. The title translates to "Four Books," reflecting its structure, which consists of four main sections that cover various aspects of astrological theory and practice. The *Tetrabiblos* addresses the relationship between celestial phenomena and human affairs, offering insights into how astrology can be used to understand and predict events.