In the WP PAF Decodable Book Set, there are 53 books in total, split into four levels/series.
The purple Off We Go! Series consists of 8 books, and Level One, Two, and Three consist of 15 books. The Off We Go! books target the consonants and short a. The Level One books focus on short vowel sounds in CVC words, the Level Two books reinforce digraphs (two letters representing one sound), and the Level Three books build fluency with glued sounds and consonant-consonant-vowel-consonant (CCVC) words (i.e., beginning blends).
