The Product Manager's Toolkit®: Methodologies, Processes, and ...
Gabriel Steinhardt
Lean Lexicon: A Graphical Glossary for Lean Thinkers
Lean Enterprise Institute & Chet Marchwinski & John Shook
How to Recognize Character Traits in an Office Environment
WikiJob
Process Excellence
Eva Best & Martin Weth
The Scrum Guide
Ken Schwaber
Management: Das A und O des Handwerks
Fredmund Malik