The Phone Interview Cheatsheet
MakeUseOf
Lexikon der Projektmanagement[..]
Günter Drews & Norbert Hillebrand
Produktmanagement: Grundlagen - Methoden - Beispiele
Andreas Herrmann & Frank Huber
Scrum and XP from theTrenches. How we do Scrum
Henrik Kniberg
Project Managers Portable Handbook
David I. Cleland & Lewis R. Ireland
Practical Security for Agile and DevOps
Mark S. Merkow