What I do for books too tall and too thin to really do anything with (like your illustrated fairy tales book) is put them on the side & let the short books piggy back on them.

But yeah, my bookshelves are two deep, too. I really need to reorganize them - and open the boxes of unpacked books I still have upstairs.

(Dude, I have like half the books on your shelf on my shelf. How'd you like Wicked?)

<3 treeson