A Primer on Bézier Curves
I used to think it was my fault that I struggled to draw things with Bézier curves but then I took a look at the resource packs for a game I respected (which had a flat art style that would have been a good fit for vectors) and found that my favorite character designers didn't know how to draw anime characters with Bézier curves either.That is,  no matter how much art you know or math you know it is awkward to draw things with Bézier curves and it's a bit of a tragedy that NURBS and other curve families that are more intuitive to work with haven't caught on.