Classical and Medieval Astrology

• Claudius Ptolemy — Tetrabiblos
• Firmicus Maternus — Matheseos Libri VIII
• Guido Bonatti — Book of Astronomy

Renaissance Astrology and Cosmology

• Marsilio Ficino — Three Books on Life
• Giovanni Pico della Mirandola — Disputations Against Divinatory Astrology
• Johannes Kepler — Harmonices Mundi

Time Cycles and Historical Astrology

• Abu Maʿshar — The Great Introduction to Astrology
• André Barbault — Planetary Cycles
• Richard Tarnas — Cosmos and Psyche

Astronomy, Astrology, and Mathematical Models

• Johannes Kepler — Epitome of Copernican Astronomy
• Isaac Newton — The Chronology of Ancient Kingdoms Amended
• Jean-Pierre Luminet — The Astronomer’s Universe

Cosmology and Cyclical Time

• Mircea Eliade — The Myth of the Eternal Return
• René Guénon — The Reign of Quantity and the Signs of the Times
• Giorgio de Santillana & Hertha von Dechend — Hamlet’s Mill

Modern Computational and Observational Approaches

• Michel Gauquelin — Cosmic Influences on Human Behavior
• Jean Meeus — Astronomical Algorithms
• Swiss Ephemeris Documentation