'It will be essential reading for scholars in the history of psychology, the history of philosophy, Popper studies and the philosophy of the social sciences.' Ian Jarvie, York University, Toronto
'... a major contribution ...' Learning for Democracy
This groundbreaking book is about Karl Popper's early writings before he began his career as a philosopher. The purpose of the book is to demonstrate that Popper's philosophy of science, with its emphasis on the method of trial and error, is largely based on the psychology of Otto Selz, whose theory of problem solving and scientific discovery laid the foundation for much of contemporary cognitive psychology.