| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Recovery of Truth | 978-99974-977-8-9 (99974-977-8-3) | 1929 |
| The Travel Diary of a Philosopher | 978-99974-977-5-8 (99974-977-5-9) | 1928 |
A. K. · H.A. · H. A. K. · H. Alexander · Hermann A. · Hermann Keyserling