Series 1 has five (5) short stories in one book. The book follows a structured phonics scope and sequence beginning with one syllable, closed syllable words, and uses a chapter book format with illustrations.

Series 2 continues from Series 1 with five more humorous decodable stories. Many of the beloved characters from Series 1 appear in Series 2, and a few new characters get themselves into a bit of trouble.

Series 3 incorporates closed syllable, one syllable words with blends and letter combinations -ng and -nk. Children love the funny, adventurous Blug family members. Because the Blugs are from another planet, nonsense words are cleverly woven into the story.

From Thailand to Lapland the animal characters in Series 4 navigate their way through daily life. The global stories continue in the same playful, engaging and funny way that Youkan Reading Decodable Books are known for. Series 4 introduces multisyllabic closed syllable words (VC/CV; VC/V) and incorporates schwa and suffix endings (i.e., -ed, -est, -ing, ness, -s). There are four stories that are appropriate for early elementary students and 80 pages of decoding application.