J.R. Kantor (1888-1984) was an American psychologist who developed a system of psychology known as interbehaviorsim. This ten-volume set of first edition books from Kantor's Principia Press represents his work over a span of six decades.

Includes hardback editions of: The Scientific Evolution of Psychology, Cultural Psychology, Tragedy and the Event Continuum, Psychology and Logic, The Logic of Modern Science, Principles of Psychology, The Aim and Progress by Psychology and Other Sciences, Psychological Comments and Queries, and The Science of Psychology.