Nichols and Stich develop and defend a new account of the psychological mechanisms underlying mindreading. They maintain that it is, as common sense would suggest, vital to distinguish between reading others' minds and reading one's own. In reading other minds, the imagination plays a central role. As a result, the authors begin with an explicit and systematic account of pretence and imagination which proposes that pretence representations are contained in a separate mental workspace, the 'Possible World Box', which is part of the basic architecture of the human mind.

This account provides a valuable framework for future work on mindreading and has broad implications for philosophical debates that have surrounded the issue for the last quarter century.