Sharon Walpole, PhD, is Professor in the School of Education at the University of Delaware. She has extensive school-based experience designing and implementing tiered instructional programs. Dr. Walpole has also been involved in federally funded and other schoolwide reform projects. Her current work involves the design and effects of schoolwide reforms. She has coauthored or coedited several books, including How to Plan Differentiated Reading Instruction, Second Edition: Resources for Grades K–3; The Literacy Coach’s Handbook, Second Edition; and Organizing the Early Literacy Classroom. Dr. Walpole is also Series Editor, with Michael C. McKenna, of The Essential Library of PreK–2 Literacy. She is a recipient of the Early Career Award for Significant Contributions to Literacy Research and Education from the Literacy Research Association and the Excellence in Teaching Award from the University of Delaware.

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Michael C. McKenna, PhD, is Thomas G. Jewell Professor of Reading in the Curry School of Education at the University of Virginia. He has authored, coauthored, or edited more than 20 books, including Assessment for Reading Instruction, Third Edition; How to Plan Differentiated Reading Instruction, Second Edition: Resources for Grades K–3; and Organizing the Early Literacy Classroom; as well as over 100 articles, chapters, and technical reports on a range of literacy topics. Dr. McKenna is also Series Editor, with Sharon Walpole, of The Essential Library of PreK–2 Literacy. His research has been sponsored by the National Reading Research Center and the Center for the Improvement of Early Reading Achievement. He is a corecipient of the Edward B. Fry Book Award from the Literacy Research Association and the Award for Outstanding Academic Books from the American Library Association. Dr. McKenna is a member of the Reading Hall of Fame.

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