The Linux Commands Reference Cheat Sheet
MakeUseOf
Time Management - You're Doing It Wrong!
Mike Song
Execution - Discipline of Getting Things Done (Summary)
Lawrence Bossidy & Paul Minors
A Project Manager's Book of Tools and Techniques
Cynthia Snyder Dionisio
Rolle und Ausgestaltung des Risikomanagements im Mittelstand: ...
Tobias Albrecht Kumpmann
Practical Security for Agile and DevOps
Mark S. Merkow