Writing a manual (or anything else) is simple-all you have to do is decide what information to include and then decide what order to put it in. That’s reminiscent of the advice given to a budding sculptor wanting to carve a horse out of a block of marble: “All you have to do is chisel away everything that doesn’t look like a horse.” Simple it may be; easy it’s not. Let’s begin with what to include and what to leave out-and most important, how to decide.