The Art of Debate
Jarrod Atchison
A Practical Guide to a High Performing Company Culture and Engaged ...
William Lindstrom
The Scrum Papers - Nut, Bolts, and Origins of an Agile Framework
Jeff Sutherland
Testing in Scrum
Tilo Linz
Scrum Project Management
Kim H. Pries & Jon M. Quigley
The SPEED of Trust: The One Thing That Changes Everything
Stephen R. Covey & Rebecca R. Merrill