Vascular lesions are among the most common congenital and neonatal abnormalities. These anomalies can occur throughout the whole body, with 60%, however, being located in the head and neck region probably due to its intricate vascular anatomy of region. There is a significant confusion in the literature because of the use of confusing descriptive terminology for the same vascular entity and eponyms. Correct naming of lesion, appropriate classification, and clinical appearance of vascular lesions have a direct impact on understanding of etiologies of these complex lesions, diagnosis, and in treating patients. Thus, the aim of this book is to provide comprehensive knowledge about classifications and an insight of various important vascular lesions affecting head and neck region based on its pathogenesis, clinical presentation, and management. This book is of immense use to academician/clinician in understanding outdated terms, confusing terminologies, and clinical appearance of various vascular lesions to diagnose them accurately as each vascular lesion requires different treatment modalities.