Begging by nestlings birds has become the model system for investigations into evolutionary conflicts of interest within families and the honest signalling of offspring need. Originally inspired by theoretical treatments of parent-offspring conflict and its resolution, the field has broadened to include a range of topics in behaviour, physiology and evolutionary biology. "The Evolution of Begging" is the first book on the topic of begging and includes 24 chapters by the top researchers in the field. The book is divided into six sections including 1) theoretical approaches to begging, 2) begging as a signal and the issue of costs, 3) nestling physiology, 4) sibling competition, 5) brood parasitism and 6) statistical challenges. The book will provide a comphrensive reference for students, teachers and researchers with an interest in behaviour and evolution, and should be a source of ideas for future investigations in this dynamic area.