This is an enjoyable book that's less than the sum of its parts. Levy looks at a few dozen major issues, theories, and people from the history of psychology and spends 4-5 pages on each of them. What determines what issues he covers? Well, that's why the book gets only three stars.
Best I can tell, it feels like Levy did a google search of what are popular pysch things people do google searches on. As a result, you get coverage of a ton of things that are badly out of date, very controversial, totally discredited - and often all of the above. So you'll get section on penis envy or Wilhelm Reich, or the Little Albert Experient - but nothing on, say, cognitive behavior therapy, which is quite a bit more relevant to modern psychology. I don't mind a few chapters on the outmoded stuff, but far too many chapters spend much of their time discussing why the chapter subject is total bunkum. OK - so why did you put so many of these things in the book? Why are you making me read about all of them?
It reads quick. I'll give it that.