Leave yourself plenty of time between flights if ATL isn't your final destination. Getting from terminal to terminal can take a while, even on the shuttle.
Use your smartphone and get gate info because the lack of monitors for all flights is severely lacking. Seems like it is airline specific for departure info!
Hartsfield-Jackson Atlanta International Airport proudly bears the distinction of being the world’s busiest and most efficient airport and has served as a valuable hub connecting various cities and countries around the globe.