Dr. Seuss's ABC by Dr. Suess

The Z Was Zapped by Chris Van Allsburg

AlphaOops! The Day Z Went First by Alethea Kontis

Once Upon An Alphabet: Short Stories for All the Letters by Oliver Jeffers

Chicka Chicka Boom Boom by Bill Martin Jr. and John Archambault

The Alphabet Tree by Leo Lionni

Alphabet City  by Stephen T. Johnson