It's hard to write a review for this one. The concept of The Book Jumper is so cool - who wouldn't want to go into their favorite book - but I did have a few issues with it. 
 Mostly though I'll say that it had quite a few things I was able to predict (and one I didn't), that's a big deal for me because I usually don't guess things. 
 In the flip side I really did like the ending. I wasn't sure I was going to, given the things I guessed, but I did. 
 My only other complaint is one that was based on my expectations: I wish we would have spent more time exploring books. I just wanted to be there in the book within a book, but I can't hold that against The Book Jumper. 
 I do have a spoilerish comment to say but I can't remember how to do that on my phone so I'll save that comment for later.