In addition to what was said above:
Look for the mead, cider, wood aging, and sour talks. Always new cutting edge stuff going on in these.
Look for LAGER sessions. This is where you learn precision.
Look for judging / palate training type seminars, where you can begin to learn to evaluate the flavor and aroma of your own beers.
Look for off the wall fun stuff, like Justin Crossley's "How NOT to brew" a few years ago (in Philly?) I almost had an aneurysm I was laughing so hard.
Some of the most popular seminars are repeated so if you miss it on Thursday, you can see it on Friday or Saturday.