This first volume in the Atlas of Human Central Nervous System Development series sets the stage with complete coverage of the spinal cord from gestational week 4 to the 4th postnatal month. 3D color images provide a holistic view of the structural changes during spinal cord morphogenesis. This landmark first volume provides quantitative summaries of several ontogenetic trends. It features all the stages of spinal cord development, offers fresh insights into the steps involved in the morphogenesis of the mature spinal cord, and shows the human spinal cord at its most primitive stage, when consisting mainly of neuroepithelial stem cells. This atlas is also available as part of the complete five volume series.