Includes three levels of expository readers designed to introduce academic language for independent, extensive reading. In this title, the readers are linked by level to Visions A, B, and C and are supported by workbooks and audio CDs for practice and reinforcement.Includes three levels of expository readers designed to introduce academic language for independent, extensive reading. In this title, the readers are linked by level to Visions A, B, and C and are supported by workbooks and audio CDs for practice and reinforcement.