These are the collected blog posts from my blog AllAboutLean.com for 2020. My blog goes into a lot of detail on all questions related to lean manufacturing, operational excellence, shop floor management, and the history of manufacturing. Due to the nature of this book consisting of different blog posts, it is not a cover-to-cover storyline, but individual articles and article series on different aspects of production. This way you can store these blog posts conveniently on your computer should my website ever go offline. This also allows you a more professional citation to an article in a book, rather than just a blog, if you wish to use my works for academic publications. The PDF is also available for download on my website.