The product is a hardcover textbook titled “Appraisal and Diagnosis of Speech and Language Disorders” published by Prentice Hall PTR in 1981. Written by J. Marquardt and Harold Peterson, the book covers the subject area of audiology and speech pathology. With a total of 340 pages, the textbook provides in-depth information on the appraisal and diagnosis of speech and language disorders in English language. It is a valuable resource for students and professionals in the field of medical speech and language disorders.