Abstract
This is a volume in the so-called "Modern Masters" series, which deals with an eclectic group including such figures as Einstein, Freud, Gandhi, Chomsky, and Che Guevara. The book is a general, introductory account of Popper’s philosophy and as such useful. For though one may not agree that Popper is a "figure of world importance" and "the greatest living philosopher of science", it is true that Popper’s philosophy is important enough to deserve more attention and discussion that it has so far received; and this applies both at the level of technical philosophy and of general culture.