Sanding question


Identity Crisis
Oct 20, 2010
I was doing bodywork on my car and my girlfreind asked me a question I am not sure about...When sanding, are you supposed to only sand in one direction. As in If I start laterally sanding should I do that for the entire process. If this is a stupid question feel free to let me know because I feel like I should know this...
So for example you could sand lateral, change grit, then change to vertical and do the entire car each time?
use an "x" pattern, so there is no sanding marks that will show up in the future.