The next step up from our most beginning readers:

Word Bird's shapes by Jane Belk Moncure ; illustrated by Chris McEwan

Amy's big race: the sound of long A by Cecilia Minden and Joanne Meier

Bob Books listen and read 1. Set 1, Beginning readers 1- 4 by text, Bobby Lynn Maslen ; pictures, John R. Maslen

Biscuit plays ball by story by Alyssa Satin Capucilli ; pictures by Pat Schories

Clifford's best friend by Norman Bridwell

Green eggs and ham by Dr. Seuss

Cat the cat, who is that? by Mo Willems

Best in show by David Catrow

Today I will fly! by Mo Willems

Clara and Clem take a ride by Ethan Long

It's not good, it's great! by Mary Elizabeth Salzmann

Look for more books in these series, too:
I Like to Read series
My First I Can Read books
Phonics Friends books
Scholastics Readers, Level 1 books
Building Blocks to Reading books