he has visited, and studied, nearly 2,000 prehistoric, and historic sites around the world. Krupp has traveled around the world for his archaeoastronomy studies. These trips have also taken him to sites close to home such as the Burro Flats pictograph site in the Simi Hills of Southern California, which he first visited in 1979. Over the years, Krupp has made semi-regular trips to that site to conduct solstice observations. Krupp has shared his studies of archaeoastronomy with the general public by including archaeoastronomy topics in Griffith Observatory planetarium programs, writing books and magazine articles, appearing in documentary films, and leading tours to archaeological sites that are associated with ancient astronomy. Bibliography Krupp has written several books for adults and for children. His first two adult books (one being his doctoral dissertation), both derive from the work he did on rich clusters of galaxies while a PhD student at UCLA. His remaining adult books derive from his interests in archaeoastronomy, and contain extensive original research and analysis, while also being educational in nature. They cover astronomy in ancient cultures and the effect of beliefs about the sky on those cultures. Books for adults Books authored, partially authored, and/or edited by Krupp for an adult audience: Chapters, forewords, and research papers Krupp has also written full chapters for books edited by other authors, as well as research papers, included in publications of the proceedings of conferences where the papers were presented. Here are some examples Time and astronomy at the meeting of two worlds : proceedings of the International Symposium held in April 27 – May, 1992 in Frombork, Poland edited by Stanislaw Iwaniszewski California Girls: Pleiades Traditions in Native California Handbook of Archaeoastronomy and Ethnoastronomy edited by Clive Ruggles, Krupp wrote three chapters for this book: In Part I, Themes and Issues Chapter 5, Astronomy and power Chapter 18, Archaeoastronomy concepts in popular culture In Part III, Pre-Columbian and indigenous North America Chapter 41, Rock Art of the greater southwest Cosmology, Calendars, and Horizon-based Astronomy in Ancient Mesoamerica, edited by Anne S. DoudSusan Milbrath Krupp wrote the Foreword for this book, Astronomy, Anthropology, and Anthony Aveni Krupp has contributed to two books on the work of artist of James Turrell, Mapping Spaces : a topological survey of the work by James Turrell Authors: Craig Adcock, E C Krupp, Mario Diacono, James Turrell James Turrell: A Retrospective Authors: Michael Govan, James