Instruction manuals, and instructions in general, are incredibly important. I could be biased, since part of my job involves writing instructions for systems, but really, they’re important! As this look into the historical importance of manuals makes clear, manuals (and instructions) make accessible professions, tools, and devices to anyone that can read them (which, admittedly, could be a hurdle of its own): “With no established guild system in place for many of these new professions (pr...