De Conceptu et Generatione Hominis (On the Conception and Generation of Man) is an influential historical medical treatise written by the Swiss surgeon and author Jakob Rueff (also known as Jacob Rueff or Jacobus Ruffius). The work served as a primary textbook for midwives and physicians during the Renaissance. It covers obstetrics, human reproduction, female anatomy, fetal development in the womb, and the duties of midwives during childbirth. The book is famous for its detailed woodcuts (often attributed to artist Jost Amman). These illustrations depict the uterus, birth positions, surgical instruments, and even "monstrous" births or deformities, which were a common fascination of the era. It was one of the first works to provide a systematic and illustrated guide to midwifery, bridging the gap between medieval folklore and early modern medical science. This edition, specialy printed for the members of Edition Medicina Rara Ltd, is a facsimile of the original 1587 Frankfurt edition.