There are so many reasons to knit a top-down sweater: you can try it on as you go (yay!), there's usually much less purling (yay!), and there's no seaming to do at the end (double yay!).
A follow-up to our Knitting Garments That Fit class (a prerequisite), this intermediate-level workshop will teach you the techniques typically used in top-down sweater knitting, including the following:
short rows (two varieties and how to substitute one for the other)
backwards loop cast-on (and some little tricks for closing up underarm holes)
Participants should be comfortable knitting in the round.