The learner will be provided with an overview of the importance the latest advances in the diagnosis and treatment of horizontal canal BPPV. The course is appropriate for physical and occupational therapists who treat persons with dizziness. Generally dizziness occurs across the life span, although BPPV is rarely seen in children until at least six years of age. Horizontal canal BPPV is seen in anywhere from 5-10% of the total cases of BPPV. Persons experience intense vertigo and often nausea with HC-BPPV. The latest theories and treatment strategies of canalithisis and cupulolithiasis will be discussed with differential diagnosis emphasized. Theories about canal jam and the newest treatment strategies will be described in detail with case examples provided.