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Book Launch: England’s First Astrology Book, by Chris Mitchell

What's Happening

The Celestial Arts Education Library is proud to be partnering with the Sophia Centre for the Study of Cosmology and Culture at the University of Wales Trinity St. David and Kepler College to launch "England's First Astrology Book: Roger of Hereford's Judicial Astrology", by Chris Mitchell.

Join us for an exciting discussion with the author!

The twelfth century saw a huge renaissance of astrology in Christian Europe, as numerous astrological texts were translated from Arabic into Latin. An English scholar called Roger, teaching in the cathedral school at Hereford, made use of these new translations to produce a textbook of horary astrology for his students, creating the first astrology textbook in England: Judicial Astrology. Roger’s seminal textbook contains many techniques that are not well-known among astrologers today, even among traditional astrologers, but are fascinating and worth trying out in your own astrology practice. Roger was teaching in England but, like all scholars of his time, wrote his textbook in Latin, and until now it has never been translated, meaning Roger’s innovative work has been largely hidden for over eight centuries. This book addresses that gap; it’s the result of nearly a decade of research that Chris Mitchell did for his PhD, unearthing the original manuscripts, transcribing the scrawling and heavily abbreviated handwriting, and translating the often confusing text into English. However, that PhD did not provide a full translation but focused on academic aspects of the text; this book is aimed not at academics, but at astrologers.

This book aims to give Roger a voice – a modern voice, where instead of talking to you in Latin or archaic English, he can go through his techniques and explain them in modern English. Roger’s original text doesn’t have many worked examples, although as a teacher Roger probably would have done worked examples in the class in front of the students, so there are numerous examples in this book. Recreate the experience of learning astrology in Roger’s classroom, but from the comfort of your own twenty-first-century home rather than a hard classroom bench.

Where It's Happening


Chris Mitchell, PhD

Chris Mitchell has a PhD from the University of Leicester on the topic of medieval astrology and has recently published a book on his research, is a tutor on the MA Cultural Astronomy and Astrology course at the University of Wales, and holds a diploma in Medieval Astrology from Astrologos. He has been actively involved in promoting and teaching astrology for 20 years, is on the boards of the Astrological Association and the Association of Professional Astrologers International (APAI), and has given talks to groups and conferences in Europe and the US.

Jenn Zahrt, PhD

Jenn Zahrt is an author, publisher, and teacher of cultural astronomy and astrology. In 2017 she was appointed as an Honorary Research Fellow at the Sophia Centre for the Study of Cosmology in Culture at the University of Wales Trinity Saint David. She researches the many forms of astrology emergent across human cultures past and present, with a special focus on early twentieth-century German culture. She has taught and lectured domestically and internationally in places such as Canada, the United Kingdom, and Germany. She is the founder of Revelore Press, creative director of the Sophia Centre Press, and the deputy editor of the peer-reviewed journal Culture and Cosmos. In 2020 she became the Senior Editor of The Mountain Astrologer, and in 2021 she founded the Celestial Arts Education Library Institute in Olympia, WA, where she currently lives. Discover more of her work:

Additional Information

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This book launch is an event produced and broadcast by the Celestial Arts Education Library (CAELi), a member-supported cultural institute. As a gathering place for book lovers and scholars alike, we are committed to the diligently curious, offering curated collections, vibrant conversations, innovative speakers, and workspaces for scholarly endeavors. We serve the region’s innovative community by being an incubator for new ideas. At CAELi, our mission is to create an inviting, intimate home for “the community of the stars” while also producing and hosting educational programs for the entire community.

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