I won this book through the goodreads first-reads program. Believe it or not, I just received this book (on 9/29), even though the giveaway only ended on the 27th. Not only is that the quickest I ever received, the goodreads system won't even let me mark it as received yet. This is very cute! It's not a children's book - they just won't get many of the references and jokes. It does depend on knowing a wide range of monsters. It is a very short book, even shorter than it looks because there are quite a few illustrations. Each monster has his own story. Most stories are 3-5 pages long. It might be better to only read a few stories at a time rather than all at once. I see this being bought as a gift more than people buying it for themselves.