I have put a small LaTeX presentation online. I am quite sure the title is going to attract some corrections from readers that know how to do things better; you are very welcome – bring ’em on.
It was put together for a presentation at an internal meeting in my research group and the title was deliberately chosen to provoke feedback from my colleagues. It is not intended as a complete introduction to LaTeX – just an overview of some useful ways and packages to do certain things. You can share and edit it as you like, it is CC-BY-licensed. You can clone the source from GitHub.