I'm mostly an X-Men fan, so this book has a lot of info that is new to me and therefore i find it very informing and entertaining.Surely it has some minor mistakes and lack of details, but the whole presentation, the printing quality and the artwork are simply perfect.After all,the Marvel Universe is so vast that one book alone could never cover it.At the end, all you get is a sincere effort,great for new readers and well worth its cost!