Although biomechanical embryology can be traced back to the 19th century, the discipline received its greatest stimulus from the work of the German embryologist Erich Blechschmidt (1904-1992). Based on a translation of Blechschmidts monograph Anatomie und Ontogenese des Menschen, this book presents an overview of the changing form and structure of the human anatomy. Blechschmidts research is based on a major collection of accurate reconstructions of human embryos and offers a new way of looking at human development.