This book provides an in-depth review of knowledge of the corpus callosum, called white matter or terra incognita, with emphasis on anatomical, embryological, diagnostics, and surgical features. It includes very informative chapters from leaders in the field, organized into six main groups: first, the embryology, neuroanatomy, and morphometry of the corpus callosum, and animal studies related to it; secondly, neurophysiological aspects, callosal disconnection and the split brain; thirdly, neuropathology, including clinical disorders such as dementia, Tourette syndrome, and schizophrenia; fourthly, surgical procedures including partial and complete callosotomy and commissurotomy; fifthly, cognitive neuroscience; and sixthly, other features of the corpus callosum, including its medicolegal aspects and statistical shape analysis. This comprehensive reference book will be an ideal source for neuroscientists at all levels, from graduate students to researchers in specific disciplines studying this region including neuroanatomists, embryologists, neurosurgeons, neurologists, neuroradiologists and pediatricians, who seek both basic and more advanced information regarding the distinctive anatomical, physiological and pathological features of the human corpus callosum. ​