Intended for staff of diagnostic-prescriptive centers, the manual is designed to provide information about the Oregon Model Center for Learning Disabilities. Chapters cover the following topics: factors involved with learning; procedures and organization of the Center; assessment of psychological, educational, and language needs; procedures for writing the materials prescription; procedures for writing the evaluation report; and validation of the prescription. Appended are information on reading, spelling, math, and handwriting materials; bibliographies for professionals and parents; and information on the Oregon Textbook Representative's Association. (SBH)