Ceiling light, double window on the North (wonderful daylight when I have that luxury).
In addition, I have an OLD swing arm desk lamp. With it I can place the lamp to the right so it's out of the way of my project, but swing the arm so the light comes from the left which I prefer.
I also removed the lid from my machine which covers the thread spindles (it pops up and casts a shadow if there is any light coming from behind it).