- * John Scalzi: The Ghost Brigades, ISBN-13: 978-0765354068
- * Michael Seemann: Das neue Spiel: Strategien für die Welt nach dem digitalen Kontrollverlust, ISBN: 3936086796
- * more “Discworld” novels by Terry Prattchet, in English or German
- * already got “Mort”, “Guards! Guards!”, “The Color of Magic”, “The Light Fantastic”
+ * Karl Popper: Logik der Forschung.
+ * Michael E. Gerber: The E-Myth Revisited. HarperCollins 1995, ISBN-13: 978-0887307287
+ * more “Discworld” novels by Terry Prattchet (R.I.P.), in English or German
+ * already got “Mort”, “Guards! Guards!”, “The Color of Magic”, “The Light Fantastic”, “Hogfather”