This book will be a practical approach to the world of vascular tumors. The complexity of this world is related to the heterogeneity of clinical manifestations, necessitating multi-disciplinary competences in order to achieve a correct diagnosis and treatment. The complexity of the clinical manifestations is approached by introducing a clear classification of hemangiomas and vascular malformations. For both issues, diagnostic imaging and therapeutic procedures are presented. Laser, interventional radiological and surgical techniques are explained according to the type of vascular tumor and its localization. The book is addressed to all professionals who meet vascular tumors in their daily clinical practice and need up-to-date references for these pathologies.