My inspirations

SCRUM and Agile
The Scrum Guide
Succeeding with Agile

Scaling up Agile
SAFe: The Scaled Agile Framework
Less: Large Scale Scrum
Craig Larman on youtube

Agile organisations
Spotify on tribes
Tribes @ Spotify (youtube)
Fail fast, learn fast @ Spotify (youtube)
The role of the product owner
Seven sins of project management

On software development
Software architecture
How Google tests software
Product management (Ben Horowitz)

Harvard Business Review
May 2016: Embracing Agile, by D. K. Rigby, J. Sutherland and H. Takeuchi
May 2016: Increase your return on failure, by J. Birkinshaw and M. Haas
July 2016: Beyond the Holacracy Hype, by E. Bernstein, J. Bunch, N. Canner and M. Lee

Principles behind Agile
QRM: time is a key success factor
Goldratt: No buffers on the critical path
Reinertsen on flow: THE BOOK
Reinertsen on youtube
Anderson on KANBAN and managing WIP
Fast Innovation
Geoffrey Moore

On leadership
7 habits of highly effective people
Multipliers
Delivering happiness
Weggeman on leading professionals (in Dutch)
Rumelt on strategy
Rumelt on youtube
Cultural differences
Steve Jobs
Good to great