Werken

Macht der gewoonte    
Slimmer sneller beter    
Smarter Faster Better
Supercommunicatie    
Supercommunicators
Supercommunicators
Supercommunicators
Supercommunicators: How to Unlock the Secret Language of Connection
The Power of Habit
Writing, Presenting, and Communicating with Confidence (HBR Work Smart Series)