A moderated panel discussion with the authors Marianne Spiller, Thomas Widhalm and Lennart Betz on the subject “how to write a book” with the experienced talk-master Bernd Erk. Together Thomas Widhalm and Lennart Betz published a book on the subject Icinga 2. Marianne, however, wrote a book on OpenHAB 2 on her own. A relaxed round-table discussion with prepared questions from the talk-master, but also with spontaneous questions by the audience. Some questions subject-related, some on authorship and some regarding the contents of the literary works.