"The Vowel Spellings Series, Level 3, comprises twelve decodable books. Each book introduces four or five spellings for a vowel sound. Books 5, 6, 9, and 12 introduce alternative sounds for a spelling. This series complements any systematic phonic program and can be used in any sequence."-- Provided by publisher.

"Book 4, sound /er/, level 3 ur, er, ir, or, ear"-- Back cover.