So I literally just now read the "Quality checklist" section of my Technical Writing textbook, like right before I saw this guide, and almost everything you've got here is practically straight off that list. Nice. :thumbup: I agree with Quyneax on all points, and I'll further stress the importance of visual components. Not just images and videos, but also tables and charts and stuff. How the information is arranged and presented is almost as important as the information itself. Break up your paragraphs with headings and subheadings. Use bulleted lists where appropriate. Highlight key phrases with boldface. A nice, laconic tl;dr section summing up the main points is often a good idea.