Prader-Labhart-Willi syndrome was first described by John Langdon Down in 1887, but it was named after three Andrea Prader, Heinrich Willi, and Alexis Labhart who reported a group of patients with the disorder in 1956. The occurrence of Prader-Labhart-Willi syndrome in Iraq has not been reported or documented. In addition to providing the historical documentation of this syndrome, particularly the early history of its documentation during the 1950s, and 1960s, this book describes the first case of this syndrome in Iraq.