This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book argues that the radically different readings of William James’s Principles of Psychology by Edmund Husserl and Ludwig Wittgenstein have contributed significantly to the differing methodological orientations and preoccupations of Phenomenology and Analytic Philosophy. It discusses important connections that ran between pragmatic and Analytic Philosophy in the period during which both emerged, the late-nineteenth to early twentieth century. The book shows that Pragmatism, founded in Cambridge, Massachusetts, by C. S. Peirce and James is often thought to be opposed to the Analytic tradition. It highlights two critical episodes: John Dewey’s 1939 contributions to Otto Neurath and Rudolf Carnap’s International Encyclopedia of Unified Science, and C. L. Stevenson’s attempt to combine emotivism with pragmatism in his influential Ethics and Language. The book also shows that between 1895 and 1935 both Logical Empiricism and Pragmatism went through crucial developments and transformations.