Beam, spot, wash, scanner, derby, blinder, strobe: what each one is for and when to use it.
Phrasing, the drop, when to strobe and when to stop. The habits that separate a good LJ from a strobe button masher.
What to actually buy first, in what order, and what to skip.
Addresses, channels, universes and how a laptop ends up controlling a room full of lights.