Scrum for Dummies
Mark C. Layton & Steven J. Ostermiller & Dean J. Kynaston
PMO Principles
Eileen J. Roden & Robert Joslin & Ralf Müller & Lindsay Scott
Matsushita Leadership
John P. Kotter
Agile Project Management with Scrum
Ken Schwaber
200 Free PMP® Sample Questions
Oliver F. Lehmann & Antje Lehmann-Benz
Growing Agile: A Coach's Guide to Training Scrum
Samantha Laing & Karen Greaves & Melissa Fagan & Ron Jeffries & Sharon Bowman