This monograph is composed of 22 units that describe and explain methods of diagnosing and recording speech performance. Nineteen different test forms to be completed in the examination of the person with defective speech are included. The basic units and appendixes of the text explain and assist in the proper completion of these forms. The examination forms cover such subjects as voice and connected speech examination, articulation testing, peripheral speech mechanism examination, examination of harshness, examination of nasality, introduction of stuttering, Iowa scale of attitude toward stuttering, Iowa unimanual and usage questionnaire, and rating sheets for student clinicians. This monograph is written primarily for use by educators interested in diagnosis and correction of speech defects, but it will also be of interest to physicians concerned with total rehabilitation.