Having problems here
Is natural people want more when they buy a book, this is a very good reference, don't doubt about it. There is better? Probably, but we need to look for the size of the book and for what is supposed to cover! For the number of pages i think there is more than enough info there, for the price there is more than enough info there. It could be better? Maybe, but it would be expensive for sure, since the increase of info means the increase of pages. For the feedback i received from some friends everybody liked the book so... :-) I hope you like it too.