Many folks use the words “podium” and “lectern” interchangeably when talking about public speaking and business presentations. The two words actually refer to two very different things.
A podium is a small platform on a stage. You stand on a podium. A lectern is the piece of furniture that often supports a microphone and usually has space for a speaker to place his or her notes. You stand at a lectern.
This isn’t a grammar website, but hey, we thought anyone interested in public speaking would want to know the difference. And now you do.