Green Eggs and Ham
Oh, the Places You'll Go!  
The Lorax (Classic Seuss)
One Fish Two Fish Red Fish Blue Fish (I Can Read It All by Myself)
The Cat in the Hat
Hop on Pop (I Can Read It All By Myself)
Horton Hears a Who!
The Sneetches and Other Stories
The Foot Book: Dr. Seuss's Wacky Book of Opposites
Yertle the Turtle and Other Stories