An introductory book providing detailed explanations of Ultra Monsters. - Title: Introduction to Ultra Monsters - Series: Shogakukan Introduction Encyclopedia Series 15 - Contents: Introduction and explanation of Ultra Monsters - Illustrations: Includes color illustrations - Published in 1971 - Due to its age, there is some yellowing, staining, and minor soiling. Please refrain from purchasing if you are sensitive to the condition of items stored at home. Discounts are not available.