One Fish, Two Fish, Red Fish, Blue Fish by Dr. Seuss. Who hasn't heard of this book? Maybe some haven't. This is a really great, silly, and fun story to share with your child of any age.
And because it's a part of the Beginner Books, which is a concept Dr. Seuss came up with, it's meant to be easy to read with enjoyable pictures as well, to ensure that your child is continually encouraged through out the book to want to read it on his own, and although it is 63 pages long, the sentences are short enough that they are easy to read for a young child.
This book is really cute with great rhymes, like all Dr. Seuss books, and I highly recommend this book, and all Dr. Seuss books as well! So if you want to pick up a copy for your child, it's avaiable at Amazon for $0.01 used to $8.99 new. Fairly inexpensive! Especially if your purchase it used, but in good condition still.