This book offers an overview of the reading diagnosis process, emphasizing specific informal testing techniques for use in the classroom. In addition to presenting specific testing instruments, the book discusses the theory and practice of diagnosis teaching, describes the instruments and the rationale for their use, and offers specific guidance on administration and scoring. Included are discussions on and informal tests evaluating the following areas: perceptual discrimination skills, receptive and generative language skills, phonic and word analysis, oral reading assessment, silent reading assessment, study and reference skills, and attitudes and appreciations in reading skills development. (Author/TO)