Tetrabiblos

Tetrabiblos (Τετράβιβλος) 'four books', also known in Greek as Apotelesmatiká (Ἀποτελεσματικά) 'effects', and in Latin as Quadripartitum 'four parts', is a text on the philosophy and practice of astrology, written in the 2nd century AD by the Alexandrian scholar Claudius Ptolemy (c. AD 90–c. AD 168).

Johannes Kepler. The Harmony of the World (Harmonice Mundi, 1619)

The fundamental work of the famous astronomer and astrologer combining plane and 3D geometry, music theory, astrology and astronomy into the one coherent mathematical-philosophical system. The Book IV contains the detailed description of the new aspect system introducing angular relations of 30° (semisextile), 72° (quintile), 144° (biquintile), 150° (quincunx), 36° (decile), 108° (tridecile), 45° (octile or semiquartile) and 135° (trioctile or sesquiquartile) into the astrological practice for the first time.

Anima Astrologiae

Isaac Newton. The Prophecies of Daniel and The Apocalypse

Sir Isaac Newton's strong conviction in an almighty Creator, who had spoken to His creation through the pages of the Bible, lead him to a more thorough study of the Bible than most men have ever cared to do. This book will make you to take the different view on Newton's genius and to release from the prejudice of him as the implacable materialist.