From my point of view, the problems with this book begin with its constant comparisons between British football, and its football culture, and Italian football and football culture. I realize that the author's main target audience is obviously British, and to them this may be interesting, but the dearth of English language resources on calcio have led to this book being regarded as a definitive work not only in Mr. Foot's home nation but also in North America, as it's the only one out there that claims to be an in-depth look at calcio. For a reader outside the British Isles, this becomes tiresome very quickly. The second, and related, problem, is that the tone of the book is, overall, much less professional than one would expect from a "history," which I suspect may stem from the tabloid-style and quality coverage football universally receives in the UK. Again, this may be what a British audience expects, but elsewhere (particularly in Italy, ironically), standards for sports journalism and punditry are generally higher, and at points the tone becomes almost jingoistic, particularly in the section regarding the Heysel disaster, where much is made of, among other things, unsourced claims of Italian media referring to all English people as animals. It may well be, but again, little about calcio is mentioned without being related back to Britain. The author also claims that the name "calcio" is a reference to "calcio fiorentino," and implies that this is an attempt by Italians to claim that they invented football, when in fact "calcio" simply means "kick" in Italian. Similarly, in Friulano dialect, the game is known simply as "balon," which translates to "ball." Given that the Italian names for a penalty, corner kick and free kick are "calcio di rigore," "calcio d'angolo" and "calcio di punizione," I'm not sure how the author could have been unaware of the meaning of the word.
Probably the most disappointing thing about the book is the format. Unlike most works labeled as in-depth histories, it is divided, essentially, into a series of lists, mainly consisting of opinions and personal anecdotes. Never before have I come across a "history" that was presented in the form of a factbook. Notable omissions are Francesco Totti and Alessandro Del Piero from the section on fantasisti, and the complete omission of Zico, Cerezo and Milan's legendary Gre-No-Li trio of the 1960s and 70s; Nils Leidholm in particular being a remarkable omission due to his impact on calcio as a coach. Also notably, Giuseppe Meazza is completely misrepresented as a goal poacher.
All in all, I was very disappointed in this book, as it was highly opinionated, in my opinion by both omission and inclusion failed to be definitive, and, again, included much that is of no interest to non-British readers, and most importantly, it was not what I expect a "history" to be.