great idea - but I think there needs to be much more refinement. On the front page when I landed there were all kinds of books, like "Trumped" which is not a kids book. So maybe look at the landing page to fit your genre. Then on a search for "Tintin" I get "Television as an Instrument of Terror" which in this case is probably not relevant. Relevant content did come up also "Rick Steins Belgium", Tintin books and a biography of Herge.

I like the ability to read the book in the pop up.

So great idea, but is this a allbooksearch engine for anybody, or a kids book site?