| title | ISBN-13 | year of publication | |
|---|---|---|---|
| Emanuel Feuermann, virtuoso. A biography | 978-3-926300-19-5 | 1995 | |
| Intellectual Capital in Twenty-First-Century Politics | 978-0-913993-20-0 | 2003 | |
| The Form of Man: The Evolutionary Origins of Human Intelligence | 978-0-913993-00-2 | 1983 | |
| Triumph of the Intelligent: The Creation of Homo Sapiens | 978-0-913993-01-9 | 1985 |