I had the good fortune to finish Benjamin Day's training course about scrum master skills. I highly recommend you visit Pluralsight and take his course. One of the more exciting things
The other night I was having dinner with someone who worked as a nurse. I understood what they did for a living and when they discussed their work it was easy to understand
Every scrum master must look for anti-patterns in how product owners do their jobs. In a perfect world, the product owner and the scrum master are like siblings working toward the same goal.