ohtay, so i'm trying to make a Wordpress layout for the first time and i'm not sure what size images i should work with. if someone could help me i would very much appreciate it!
oh and i'm really sorry if i put this in the wrong place, i wasn't sure where it should go.

ahh thank you so much!!

large images but 640px previews

unless you mean the background image, go for around 1000px wide for that