A Malocclusion created due to a vertical discrepancy is of great interest in the field of orthodontics, because of its etiology, treatment planning, and tendency to relapse in the post-treatment period. An Experienced orthodontist can possibly face a malocclusion with an anteroposterior discrepancy without doubt but a malocclusion with a vertical discrepancy must be faced with caution, weighing the options for treatment. This Book will emphasize clinical features, the classification, diagnosis, management, and retention of the vertical discrepancies in Orthodontics.