Three major questions remain "up for grabs" in contemporary research on the Gospel of Thomas: (1) When was Thomas composed? (2) What is Thomas's relationship to the canonical gospels? (3) What theological outlook is found in the Gospel of Thomas? These questions, about which there is little agreement among scholars, have dominated the landscape of Gospel of Thomas research for the past six decades. In this book, Christopher Skinner explores the contributions of major figures and examines recent scholarly theories on these important questions.