On-going continuous learning . Once you start on Agile there is no end of learning! See Reading List for books.

• 2017-01-03: "The Principles of Clean Architecture" by Uncle Bob Martin
• 2016-03-01: "Continuous Delivery in a large Enterprise – Transforming Enterprise IT" by Henk Kolk
• 2016-02-19: "Second Generation Lean Product Development" by Don Reinertsen
• 2015-11-17: "10 Reasons Estimation and Planning Fails and What to Do About It" by Troy Magennis. Great pitch. Love the basics here, such as “If you are in the non-linear region of utilization for your project (i.e. greater than 80% utilization) then estimation will always fail”, “Sometimes you need just enough information to decide what not to do, and perhaps toss a coin for remaining options (if they really are close enough)”, “why this project won't finish on time is because of last project - and no amount of estimating is going to help” and the importance of understanding dependencies. Idea that a lot of bad things happen which increase utilization into the “non-linear” zone and so make estimating useless and forecasting difficult.
• 2015-11-12: Introduction to Micro-services by Martin Fowler. Covers definition (or rather characteristics), when they should be used, and relationship to more general SOA discussion.
• 2015-11-12: Agile is Dead - by Dave Thomas. Agile as originally intended is an adjective, not a noun.