Wikipedia:Tip of the day/December 8, 2006
To add an image to a page, type [[Image:Name.jpg|label]] where you want to insert it. You can add various options separated with a "|" after the image name. For example, [[Image:Name.jpg|thumb|180px|A caption]] will automatically generate a right-aligned thumbnail of the image with a width of 180 pixels and the caption "A caption", and [[Image:Name.jpg|left]] will produce a left-aligned full size version.
Read more: Wikipedia:Extended image syntax