These slides have been created during almost 2 years while I was a freelance consultant, and being used on several training courses and conferences. These last version was created for the Percona Live Amsterdam 2015 conference. Minor corrections where done afterwards.
Copyright Jaime Crespo. CC-BY-SA-4.0. See LICENSE.txt for details.
Thanks to @morgo, who inspired and provided very useful feedback and corrections to the slides.