| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Penny Thornton Mixed 27bk Bin | 978-1-85538-238-1 (1-85538-238-5) | 1991 |
| With Love from Diana: the Princess of Wales' Personal Astrologer Shares Her First-Hand Account of Diana's Turbulent Years | 978-0-671-89186-2 (0-671-89186-3) | 1995 |