Marcel Mauss's 1925 essay The Gift is an enduring classic of sociological and anthropological analysis by a thinker who is one of the founding fathers of modern anthropology. The Gift exploits Mauss's high-level analytical and interpretative skills to produce a brilliant investigation of the forms, meanings, and structures of gift-giving across a range of societies. Mauss, along with many others, had noted that in a wide range of societies - especially those without monetary exchange or legal structures - gift-giving and receiving was carried out according to strict customs and unwritten...

C.K. Prahalad and Gary Hamel's 1990 The Core Competence of the Corporation helped redefine traditional ideas of management strategy. It did so by focusing companies on one of the key critical thinking skills: evaluation. In critical thinking, evaluation is all about judging the strengths and weaknesses of arguments - assessing their reasoning and the relevance or adequateness of the evidence they use. For Prahalad and Hamel, companies could gain a competitive edge by evaluating themselves: their own strengths and weaknesses. By sensitively evaluating core competencies - the collective...

The impact of William James's 1890 The Principles of Psychology is such that he is commonly known as the father of his subject. Though psychology itself is a very different discipline in the 21st-century, James's influence continues to be felt - both within the field and beyond. At base, Principles was designed to be a textbook for what was then an emerging field: a summary and explanation of what was known at that point in time. As its continuing influence shows, though, it became far more - a success due in part to the strength of James's analytical skills and creative thinking. On the one...