This book examines from different perspectives some of the most challenging themes in Mesopotamian religion such as gender switch of deities and changes of the status, roles and functions of goddesses. The authors incorporate recent scholarship from various disciplines into their analysis of textual and visual sources, representations in diverse media, theological strategies, typologies, and the place of image in religion and cult over a span of three millennia. Different types of syncretism (fusion, fission, mutation) resulted in transformation and homogenization of goddesses' roles and functions. The processes of syncretism (a useful heuristic tool for studying the evolution of religions and the attendant political and social changes) and gender switch were facilitated by the fluidity of personality due to multiple or similar divine roles and functions.