In Gnostic John the Baptizer, G. R. S. Mead explores the esoteric role of John the Baptist within early Christian Gnostic traditions, presenting him not merely as a forerunner of Jesus but as a profound mystical teacher in his own right. Drawing from ancient texts and sects such as the Mandeans, Mead reveals how certain Gnostic groups viewed John as a key figure in the transmission of hidden spiritual knowledge. The book includes translations of rare writings that portray John's teachings on repentance, baptism, cosmic wisdom, and the mysteries of the divine realm. Mead contextualizes these beliefs within broader Gnostic thought, offering insight into alternative early Christian views that emphasize inner transformation and secret doctrine. A valuable resource for those interested in the deeper, often overlooked dimensions of Christian origins.