Coming into starting Jr. K, AppleBlossom already knew her alphabet. She could sing it in order (only half the time skipping N and then insisting she had said too) and she could identify letters out of order both upper and lowercase. Also, thanks to LeapFrog Phonics Letter Factory DVD she knew all the sounds as well. What she did not know was how to write any letter other than a capital A that I had just showed her one day randomly. So I knew I needed something organized to really work through them all.
Learning the alphabet is the critical first step in learning how to read. The Alphabet Book teaches letter recognition, letter formation, and pencil grip through repetition and tracing.