The theoretical foundations of dysfluent behavior have to be reviewed; this involves patients with speech and articulation difficulties suffering hearing difficulties, autism and whom of special needs. Topics taught are: symptomatology, Incidence variables, characteristics of the person who stutter, the stuttering response, theories of stuttering, and normal dysfluencies. Differential diagnosis, principles of therapeutic techniques, and management procedures for children and adults will be studied. Various treatment approaches are to be examined and compared.