Start with Drag Engrave EVERYTHING!! (11 min, Carbide 3D), then How To Laser Cut Acrylic for a Gift with a Full Spectrum Muse Laser Cutter (13 min, 3D Printing Nerd). All 86 lessons here are free, from the teachers' own official uploads. You'll need diode laser engraver, laser safety glasses, plywood sheets for laser and a few more basics (about $440 of kit).