Books

  1. The Petroglyph Calendar: An Archaeoastronomy Adventure
    The Petroglyph Calendar: An Archaeoastronomy Adventure

  2. Puzzling Questions About the Solar System
    Puzzling Questions About the Solar System

  3. Observing Handbook and Catalogue of Deep-Sky Objects
    Observing Handbook and Catalogue of Deep-Sky Objects

  4. Introduction to Stellar Astrophysics: Volume 2
    Introduction to Stellar Astrophysics: Volume 2

  5. Messages from Space : Crop Circles Bring the First Indisputable Extra-Terrestrial Signs from Space
    Messages from Space : Crop Circles Bring the First Indisputable Extra-Terrestrial Signs from Space

Books