Level 0: Being read to. Child in this level is comfortable with Board books, Flap books, Touch and Feel books. Generally under 2 years of age.
Level 1: : Can engage in a conversation regarding the book. Comfortable with picture books and books with lots of repetition. Age between 2-4
Level 2: Emergent Reader. Can recognize a few familiar words in the book. Age between 3-5
Level 3: Comfortable Reader. Can read books on his/her own. Need help only with complex words. Age between 4-6
Level 4: Fluent Reader. Can read books fluently with no help and can read chapter books. Age between 6-8
Level 5:Avid Reader. Can read pre-teen and teen books. Age between 9-12
Level 6: Advanced reader. Can read heavy chapter books and can finish 2-3 books in a week. Age generally 13+