I have been working with various Agile practices for a few years now and really when full force into Scrum and Kanban at my new position. So, as the coach of the team and assistance to my boss on building an efficient team I decided to study about Scrum practices and take a course.
I attended a ScrumMaster course provided by 3Back which was fantastic! The instructor Dan Rawethorne also published a book which I am reading. The course was full of very useful information and real world experience that Dan participated in through his career. I was lucky to be in a class that had a people that participated a lot which made the class that much better.
The following week I took my ScrumMaster assessment and successfully passed with a 97.1% score! So, I am now a Certified ScrumMaster.