Awesome List of resources on Agile Software Development.
The Agile Coach Role at Spotify - by Joakim Sundén
The Hitchhiker’s Guide to Agile Coaching - by The agile42 Coaches. “[T]he first version of the introductory reference for new Agile Coaches as well as experienced ScrumMasters”
What is an Agile Coach? - by Simon Powers
What Makes a Good Agile Coach? - by Tim Guay