This article is for the Scrum Masters who think they are on the right track but can do better, which in essence should be the attitude of all Scrum Masters. Jasper Alblas will take you along on a part of his learning-journey so it can help you improve yourself and others towards Professional Scrum.
Read the full article here: https://medium.com/the-liberators/master-up-your-scrum-bf1d4e1b0cb0