This impressive volume contains the edited proceedings of a symposium held in honor of Isabelle Y. Liberman, whose teaching and writings laid the foundation for contemporary views of reading disability. Her work has influenced ways of thinking about the nature of the problem and ways of working with children and adults who experience unusual difficulty in learning to read. The symposium covered four themes that were central to Dr. Liberman's research on reading acquisition and disability: the development of phonological awareness, the relationship between phonological awareness and success in learning to read and write, the investigation of other phonological processes associated with reading and writing performance, and the implications of current research on these matters for reading instruction. The text includes a paper on each topic, followed by commentaries which introduce additional research findings and theoretical considerations -- all by leading researchers in the field.