As an important tool for instruction and text selection, this book will help teachers learn to evaluate children's and young adult literature for quality and complexity to support rigorous literacy and content learning. In addition, it explores how instructional purpose shapes not only the kinds of curricular texts used but also considers their complexity relative to readers. By offering a framework for text selection, this book helps teachers more deeply understand text complexity in the Common Core and other state standards as well as its importance when building and using text sets in the classroom and reading for different purposes. Book is designed for children in kindergarten through 12th-grade.