The term “Theory of Mind” refers to a complex cognitive skill that allows an individual to attribute mental states to himself and others, is a system of knowledge that we infer beliefs, desires, feelings and thus achieve interpret, explain or understand, as if to predict and control the behavior of themselves and others. According to the goal of exposing the development of the term, addressing theoretical concept that proceeded and later to him, they have collaborated in a direct or indirect consolidation and development of this theoretical proposal. The theory of the mind has been the subject of considerable research effort and has become an important theoretical construct that led to a series of positions among which are: theory-theory, theory of innate modules, theories simulation, the social construction of the mind, neurobiological theories.