This book provides a comprehensive overview of the development of the human central nervous system (CNS) in the context of its many developmental disorders due to genetic, environmental and hypoxic/ischaemic causes. The book contains three general, introductory chapters in which an overview of the development of the human brain and spinal cord, a summary of mechanisms of development as obtained in experimental studies in various invertebrates and vertebrates, and an overview of the causes of congenital malformations are presented. The developmental disorders of the human brain and spinal cord are presented in a regional, more or less segmental way, starting with neurulation and neural tube defects, and ending with developmental disorders of the cerebral cortex. These chapters are abundantly illustrated in colour with carefully chosen clinical case studies with imaging data, and when available, postmortem verification of the developmental disorders involved. In the third edition , more emphasis has been given to the developmental ontology based on the prosomeric approach, and fetal development. Prenatal diagnosis by ultrasound, MRI and DTI, and classifications of developmental disorders have been updated. A number of new Clinical Cases have been included. Several new co-authors participate in various chapters.  The book is intended for advanced medical students, and all those clinicians working with children and adults with developmental disorders of the CNS. Unique to the book is the integration of data from human embryology, experimental and molecular findings in mice in particular, imaging and developmental neuropathology.