It includes both heresiological & original texts--Nag Hammadi only uncovered later. It holds useful material on Simon Magus, the Hermetic Poimandres (shown here to be equally a gnostic document), the Valentinians, Mandaeans, Manichaeans & the "Hymn of the Pearl". The existentialist bent--Jonas a student of Martin Heidegger--makes an interesting contrast to Pagel's more orthodox view of gnostic religion as theistic. This volume & the Nag Hammadi library will provide good coverage of the diverse teachings of gnostic & related movements.Introduction: East & West in Hellenism The Meaning of Gnosis & the Extent of the Gnostic MovementGnostic Imagery & Symbolic Language Simon Magus The "Hymn of the Pearl" The Angels that Made the World. The Gospel of MarcionThe Poimandres of Hermes Trismegistus The Valentinian Speculation Creation, World History & Salvation According to ManiThe Cosmos in Greek & Gnostic Evaluation Virtue & the Soul in Greek & Gnostic Teaching The Recent Discoveries in the Field of Gnosticism Epilogue: Gnosticism, Nihilism & Existentialism