A book exploring the universe and civilizations. - Title: Lost Planetary Civilizations - Author: John A. Keel - Translator: Juro Kitamura - Publisher: Tairiku Shobo - Table of Contents: The table of contents includes content related to the universe and civilizations. Published in Showa 50 (1975). Some yellowing due to age. "Unveiling the alien ruins etched on Earth! Ancient maps surveyed by 'flying saucers,' aliens from lost continents, humans from other worlds, communication from intelligent beings, etc., delving into the mysteries of ancient Earth civilizations!" Table of Contents [Part 1] Ancient maps surveyed by "flying saucers" / Aliens from lost continents / Ancient civilizations built by aliens / Cosmic orphans / Traces of aliens hidden in megaliths / Causes of ancient city collapses / The birth of Venus as told in myths and legends [Part 2] The machinations of pseudo-humans / Those who have experienced paranormal phenomena / Humans from other worlds / The earthly union of gods and humans [Part 3] Unidentified radio waves attacking Earth / People who disappeared into dimensional rifts / Future humans and civilizations Thank you for viewing.