Start Machine Learning in 2020 -- Become an expert from nothing, for free!

This guide is intended for anyone having zero or a small background in programming, mathematics, and/or machine learning. There is no specific order to follow, but a classic path would be from top to bottom, following the order given in this article. If you don't like reading books, skip the section, if you don't want to follow an online course, you can skip this one as well. There is not a single way to become a machine learning expert, and with motivation, you can absolutely achieve it creating your own steps. But the goal of this article is to give a path for anyone wanting to get into machine learning and not knowing where to start.