| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1994 | 978-1-879557-02-4 | William James | Varieties of Religious Experience |
| 1995 | 978-1-879557-29-1 | Aldous Huxley | The Perennial Philosophy |
| 1969 | 978-1-879557-43-7 | Richard Phillips Feynman ยท Jeff Riggenback | The Character of Physical Law |
| 1997 | 978-1-879557-46-8 | Jeff Riggenbach | T. Rex and the Crater of Doom |
| 1998 | 978-1-879557-54-3 | Jared Diamond | Guns,Germs, and Steel |