This is true for any time you're explaining something--technical or not. You begin by engaging the listener/reader--giving them context, piquing interest, maki

This is true for any time you're explaining something--technical or not. You begin by engaging the listener/reader--giving them context, piquing interest, making them care. Often times you can do this in one sentence: are you X? Do you use X? Or are you tired of having to do X? Etc. For detailed info, you'll need to break up the message into parts and reengage them at the start of each part.