Problem with expired books on ios

ADE works just fine on my laptop pc. However, when I delete a book from ADE on my laptop, then open ADE on my iphone, A LOT of expired books show up, but I can't delete them or open them or anything, and they are blank covers. I don't know how to fix this. My new books don't show up either. I have tried re-syncing. How do I fix this.