Update: This article is part of a series. Check out the full series: Part 1, Part 2, Part 3, Part 4, Part 5, Part 6, Part 7 and Part 8! You can also read this article in Italiano, Español, Français, Türkçe, Русский, 한국어 Português, فارسی, Tiếng Việt or 普通话. Giant update: I’ve written a new book based on these articles! It not only expands and updates all my articles, but it has tons of brand new co