Preschool Prep is an excellent reading program that’s easy on the pockets. My kids could recognized all of the site words/phonics sounds in that program at 2 years old. They were reading the preschool prep books by 3…and the rest is history. I used the frye’s test to see what grade level they were in….this is how I started picking reading books for them to read. It’s a simple test to check to see what reading level your kids are on.