Updated: 3:53 p.m. Wednesday, Oct. 17, 2007 | Posted: 5:24 p.m. Saturday, Oct. 13, 2007
There are actually eight official flags of different designs and colors that let drivers and teams know what's going on during a race.
There are two official flagmen that waive those flags at every NASCAR Nextel Cup race.
We caught up with them and they give us the official explanation of what they're all for in a video and slideshow on this page.
When you're done, take the quiz to test your newly acquired NASCAR knowledge.
For more NASCAR news, videos, fact, slideshows and more--check out WSOCTV.com's NASCAR section.