| title | | ISBN-13 | year of publication |
|---|
| A Brief Guide to Secret Religions | | 978-0-7624-4103-7 | 2011 |
| A Brief Guide to Secret Religions: A Complete Guide to Hermetic, Pagan and Esoteric Beliefs | | 978-1-84901-595-0 | 2011 |
| A Brief History of Secret Societies | | 978-1-84529-615-5 | 2007 |
| A Brief History of Secret Societies: An unbiased history of our desire for secret knowledge | | 978-0-7867-1983-9 | 2007 |
| Barrett, David V.: Tarot und was er bedeutet | | 978-3-88189-169-1 | 1995 |
| Das Tagebuch der Träume | | 978-3-908645-93-1 | 1998 |
| Digital Dreams | | 978-0-450-53150-7 | 1990 |
| Dreams - The Predictions Library | | 978-0-13-230947-9 | 1995 |
| Handlinien und was sie bedeuten | | 978-3-88189-171-4 | 1998 |
| Handschrift, und was sie bedeutet | | 978-3-88189-168-4 | 1996 |
| Kleine Orakelkunde, Runen, und was sie bedeuten | | 978-3-88189-170-7 | 1996 |
| La chiromancie | | 978-2-89428-139-0 | 1995 |
| Langenscheidts Sprachführer, Dänisch | | 978-3-468-22103-3 | 1996 |
| New Believers: Sects, Cults & Alternative Religions: Sects, Cults and Alternative Religions | | 978-0-304-35592-1 | 2000 |
| New Believers: Sects, Cults and Alternative Religions | | 978-1-84403-040-8 | 2003 |
| Numerology | | 978-0-13-230962-2 | 1995 |
| Palmistry | | 978-965-286-997-5 | 2001 |
| Sects, Cults and Alternative Religions: A World Survey and Sourcebook | | 978-0-7137-2567-4 | 1996 |
| Tarot Predictions Library | | 978-0-13-230996-7 | 1995 |
| Templariusze i inne tajemne stowarzyszenia | | 978-83-61048-69-5 | 2009 |
| The Atlas of Secret Societies: The truth behind the Templars, Freemasons and other mysterious sects | | 978-1-84181-335-6 | 2009 |
| The Encyclopedia of Prediction | | 978-0-8317-8195-8 | 1992 |
| The Fragmentation of a Sect: Schism in the Worldwide Church of God | | 978-0-19-986151-4 | 2013 |
| The New Believers: Sects, 'Cults' and Alternative Religions | | 978-0-304-35890-8 | 2003 |
| Träume, und was sie bedeuten | | 978-3-88189-167-7 | 2000 |
| Zahlensymbolik und was sie bedeutet | | 978-3-88189-172-1 | |