Some of my favorites:

- "Book with No Pictures" (B.J. Novak [yes, that's Ryan from The Office]) - anything by Sandra Boynton - Boxcar Children series - Cam Jansen series - "Ada Twist, Scientist" (Andrea Beaty)

We have tons of books, from a variety of sources; some are duds, IMHO, mainly gifts from my MIL (tip for giving books to children: read through them first, from the perspective of reading that book every day for a month; bargain bins contain tons of garbage). Unfortunately, the kids like some of the duds, so they slip them in from time to time.