Johannes Fiebig è uno degli autori più affermati in materia di tarocchi, nonché uno dei massimi esperti dell’interpretazione psicologica dei simboli. Dal suo esordio editoriale nel 1984, i suoi libri hanno venduto oltre 2 milioni di copie e sono stati tradotti in più di dieci lingue. Nel 1989 è stato cofondatore e comproprietario della casa editrice Königsfurt, in seguito scorporata nei marchi Königsfurt-Urania e AGM-Urania, di cui è stato amministratore delegato fino al 2018. Da allora vive a Kiel, in Germania, dove lavora come scrittore freelance.

Mary K. Greer is one of the world’s leading Tarot scholars and experts, famous by her outstanding, both exciting and useful Tarot blog. She is an author, teacher, and professional tarot consultant known for her innovative teaching techniques. With an M.A. in English Literature, she taught Tarot in colleges for fifteen years. Since the 1980s and her book Tarot for Your Self (1984), Mary belongs to the pioneers of the tarot as self-experience and as a tool of personal transformation and empowerment. She is a co-author of Pamela Colman Smith: The Untold Story (2018). She lives in California, USA. 

Rachel Pollack has published 46 books, including several on the Tarot, which are known the world over. Her books have been translated into 15 languages, and she has taught and lectured on four continents. A visual artist, she created the Shining Tribe Tarot and, in collaboration with Robert M. Place, the Raziel Tarot and the Burning Serpent Oracle. Rachel Pollack lived in Rhinebeck, New York (USA), where she died in 2023.

Robert A. Gilbert studied philosophy and psychology at the University of Bristol and obtained a doctorate from the University of London for his thesis on Victorian esoteric literature. A prolific author, he is also an editor in the field of Western esotericism, specializing in the life and work of Arthur E. Waite and the history of the Order of the Golden Dawn. He lives in Somerset, England.