When I was picked to go to the Michaels Maker Summit last year one of the first things I did was to look up past Summits. I learned that there'd only been one before and it was exclusive. So finding The Project Girl, Sugar Bee Craft, Craftberry Bush, Jennifer Rizzo, U-Create and some other's posts about it got me excited and gave me a good sense of what to expect. (But even then I didn't realize how great it was going to be). People post about conferences and events all the time. Look them up. You're likely to find info that'll help you prepare.
Unless you're going to Missouri Star Academy which it's their first. That leads us to the next thing to look up.
Look them up. "Them" meaning keynotes, presenters, panelists. "Them" meaning organizers, attendees, agendas and past conferences. Those them.
Some of the speakers you're likely to "know". Meaning you've heard of them, followed them and know their work. It's still good to look these people up to see what new projects or causes they are working on currently. Others may be new to you. Looking these folks up will give you insight into who they are and what they do giving you a clearer understanding before you hear them speak.