Personally, I look in the books of information, anecdotes, contact with the author (why drawings, why these colors, what emotions during labor, meanings?) And this book (and following) are without exception some bottom lines pages and two pages at the end with a little chitchat.
It's not bad if you like contemplating artbook drawings, if you are looking for information, for cons, it's a bit light. Fan FMA, please, for that price it remains a beautiful object of collection! (And for explanations to be new: D)