The Scrum Master Training Manual: A Guide to the Professional Scrum Master (PSM) Exam

This simple book is a guide on Scrum framework, as defined in the “Scrum Guide”, from scrum.org.
It’s helpful for learning Agile and Scrum, and also for a basic preparation for the PSM I exam (Professional Scrum Master level 1). It can also act as a simple reference for Scrum practitioners.