Sisi's Library

We know that you like to read books,so we wanted to prepare a reading surprise for you. Sisi's Library was opened, so we entered. But guess what?! Sisi was too busy trying to sort out the books...and that's a lot of work to do for just one person, so why don't you try to help out?! Pair the books, and Sisi will know what to do with them next...you just have to pay a little bit of attention, and you'll be done in no time! We know you practiced your skills already, because you did such a great job with Toto's Stamp Collection, so we know you'll do just perfect once again.