This book could not be more obviously written by someone who isn't educated in the topic. It is so amateurish that it stops being enjoyable. Or rather it stops being enjoyable for someone who knows a bit about the topic and is expecting more of the book, its weakness can be seen as a strength for someone who is not familiar with the topic at all. The author fails terribly to properly explain the ideas of Greek philosophers, but it is clear that he enjoys learning about the philosophers themselves, as a lively Italian with a knack for entertainment he gets lost in anecdotes, setting aside actual philosophy and wandering away even to contemporary Italy. This is frustrating, but for someone who just casually picked the book up it can make for an enjoyable introduction and a motivating force for studying the subject more. So despite it flaws it's not useless, it can be a good gift for less philosophically minded people that will make them interested in philosophy, but I'm just disappointed that it can be found in my faculty's library among better and more serious works.