This graphic R-O-C-K-S. This is by far one of the most useful things that I have ever found for event planners and marketers (and me).
Using this graphic as a guide, you now have the proper sizing for almost every social network that matters and for every situation that might pop up including cover photos, backgrounds, and even the little thumbnails that appear next to links… this stuff matters because when you take the time to look your social best, you will find that you get more likes, more clicks, and more interaction with the people and attendees that follow you.
We have to throw a HUGE shout out to the folks at LunaMetrics for creating this work of art.