Volume 12, Number 3, 2004 Contents: Preface. S. Vaughn, J.P. Williams, Introduction to the Special Issue on Reading. ARTICLES:J.P. Williams, K.M. Hall, K.D. Lauer, Teaching Expository Text Structure to Young At-Risk Learners: Building the Basics of Comprehension Instruction. M.D. Coyne, D.C. Simmons, E.J. Kame'enui, M. Stoolmiller, Teaching Vocabulary During Shared Storybook Readings: An Examination of Differential Effects. E. Dion, P.L. Morgan, D. Fuchs, L.S. Fuchs, The Promise and Limitations of Reading Instruction in the Mainstream: A Need for a Multilevel Approach. D.J. Chard, Toward a Science of Professional Development in Early Reading Instruction.