Lesson Two - Shape Builder. I ended up learning a lot from this exercise, like to join your shapes often to avoid having too many intersections. Sometimes, a curved line will work better than a circle (probably in a future lesson, but since I have a teeny bit of Illus. knowlege, I simplified the workflow myself.
Lesson 3: Final shape builder
Lesson 12?: Width Tool
What I learned - The width tool gets a little wonky around sharpchanges in direction (see the letter V)
Warp your own name
Rotate and Repeat a Gradient shape
DIY repeating pattern
Vectorize a photo
I took a photo from last Christmas and stylized it with 6 colors, then adjusted the palette to make it a bit more interesting.