Easy Readers:

Starring First Grade  by Miriam Cohen

Great Day For Up by Dr. Seuss

Danny & The Dinosaur Series by Syd Hoff

Bear's Bargain  by Frank Asch

Spot's Birthday Party  by Eric Hill

Noisy Nora  by Rosemary Wells **

Mrs. Brice's Mice  by Syd Hoff **

Leo The Late Bloomer  by Robert Kraus

Oliver by Robert Kraus

Arthur's Honey Bear  by Lillian Hoban **

** = my personal favorites

More Advanced:

Frog & Toad Books by Arnold Lobel **

M & M Series by Pat Ross

Nate the Great Series by M. Sharmat

Amelia Bedelia Series by Peggy Parish **

Cam Jansen Series by David Adler **

George & Martha Books  by James Marshall

The Polk Street School Series by Patricia Reilly Giff

Horrible Harry Series by Suzy Kline

Mary Marony Series by Suzy Kline

Pee Wee Scouts Series by Judy Delton

Pinky & Rex Series by James Howe

Triplet Series by Debbie Dadey

** = my personal favorites