I went through several versions of this design. The original crown shaping was overly complicated on paper and looked like a bit of a mess when knitted up. After lots of erasing and redrawing on the chart, I ended up with a simpler version that I think is very pleasing.
ability to read a chart
working in the round
knowledge of twisted stitches is helpful but not necessary
150-200 yards worsted weight wool or wool blend yarn
US #5/3.75 mm 16" circular needle
US #6/4 mm set of dpn and 16" circular needle