Michael C. McKenna, PhD, is Thomas G. Jewell Professor of Reading at the University of Virginia. He is the author, coauthor or editor of 15 books and more than 100 articles, chapters, and technical reports on a range of literacy topics. His books include two that were coauthored with Sharon Walpole: "The Literacy Coach's Handbook: A Guide to Research-Based Practice "and "Differentiated Reading Instruction: Strategies for the Primary Grades," His other books include "Assessment for Reading Instruction" (with Steven Stahl); "Help for Struggling Readers"; "Teaching through Text"; and "Issues and