If she is very, very new to reading, try the Monkey books by David Martin. DS especially liked Monkey Eats Worms and Monkey Trouble. Also (a little higher level than Monkey), any of the Dr. Seuss books, or the ones by P.D. Eastman (Big Dog Little Dog, Are You My Mother?). And later on, or now if she's ready, the Frog and Toad books by Arnold Lobel -- DS5 still loves those.