SUSAN L. LYTLE is Associate Professor of Education, Chair of the Language and Literacy in Education Division, and Director of the master’s and doctoral programs in Reading/Writing/Literacy at the Graduate School of Education, University of Pennsylvania. She is also the Founding Director of the 22-year-old Philadelphia Writing Project (PhilWP), a site of the National Writing Project and an urban school–university collaborative network focused on teacher-to-teacher professional development and practice-based research on teaching, learning, and schooling. Dr. Lytle has a long-standing commitment to working with urban K–12 teachers, community college/university faculty, and adult educators to design and document a variety of inquiry-based collaborative research programs and projects. She has published widely on topics related to literacy education, practitioner inquiry, teacher learning and leadership, and school–university partnerships. Dr. Lytle is a past president of the National Conference on Research in Language and Literacy (NCRLL) and the National Council of Teachers of English’s (NCTE) Assembly on Research.