The Very Hungry Caterpillar by Eric Carle
The little holes in all the food the caterpillar eats are great for little ones to touch. The story is short enough to keep their attention and the drawings are fun to look at.

Mama Do You Love Me? by Barbara M. Joosse, Barbara Lavallee (Illlustrator)
The story on this one is a bit longer but if the wee one doesn't want to stay still, the pictures are detailed and fun enough that you could make up your own story to them. But try and get through the whole story because the tale is a very beautiful one about a little girl and how much her mother loves her. It has beautiful native-Alaskan influences woven into the storyline.

Goodnight Moon by Margaret Wise, Clement Hurd (Illustrator)
This one is a classic. It describes all the objects in the room and then says goodnight to them all. The drawings are simple and high-contrast and the repetition in the storyline is a sure win for babies.

Pat the Bunny by Edith Kunhardt Davies, Dorothy Kunhardt (Illustrator)
Olivia loves this classic because she can pat the fuzzy bunny, look in the mirror, play peek-a-boo with Paul, and it is easy for her to help turn the pages. There are lots of little activities to do on each page. My only complaint is the book we got is starting to get a little soggy from the drooling and book-eating Olivia but I imagine it probably comes in the board-type style book, which will withstand slimmy teethers.