De Occulta Philosophia Vol. IV: The Fourth Book by Heinrich Cornelius Agrippa

Ritual Magic • Heptameron • Agrippan Tradition • Early Modern Occultism

De Occulta Philosophia Vol. IV: The Fourth Book by Heinrich Cornelius Agrippa brings together a complex body of texts associated with Agrippa’s wider occult philosophy, including extracts from De Incertitudine et Vanitate Scientiarum and the apocryphal Liber Quartus de Occulta Philosophia, alongside material related to the Heptameron tradition.

This final volume presents a more practical and ritual-focused dimension of Renaissance magical thought, reflecting the evolving relationship between scholarly philosophy and operative magic in the early modern period. Within these texts, ritual structures, invocations, and ceremonial instructions appear alongside philosophical critique, revealing the tension between intellectual scepticism and magical practice.

The Liber Quartus and related materials present a system of ritual magic that is both structured and experimental, blending liturgical forms with practical instructions for engaging with spiritual intelligences. The inclusion of the Heptameron introduces a tradition of elemental and planetary ritual sequences that influenced later magical manuals and grimoires.

Alongside these ritual texts, Agrippa’s satirical and philosophical writings critique human knowledge systems, astrology, superstition, and intellectual pretension, while simultaneously acknowledging the possibility of hidden realities beyond rational comprehension. His work combines humour, scepticism, and mystical speculation in a way that remains central to the development of Western esoteric thought.

This Black Letter Press edition presents these interconnected texts in a carefully produced hardcover format, completing the series and offering readers a comprehensive view of Agrippa’s influence on both magical practice and philosophical inquiry.