Giotto did these a while back, too.

A friend having recently decorated a room, asked for something Big, Wide and Green for the wall, so I suggested the idea of a triptych.

Once we agreed on the snap I suggested some variations. The tool used to make the red outlines is Xtralean’s ImageWell.

In case you think this is original, that old dauber Giotto was doing this sort of thing some 700 years ago:

Giotto c. 1320.

A related use of multiple images is to show two or more taken a brief moment apart. In this diptych I have used the Print->Custom Package function in Lightroom 3 to place two similar images next to one another, ready for printing on 13″ x 19″ paper. This is the serenely beautiful young woman I snapped the other day and wrote about here:

Diptych ready for printing in Lightroom 3.

Lightroom 2 could not place different images on one sheet, but if that is what you use search the web and there are simple code changes to the print template which will permit this, easily conferred with any text editor like TextEdit, which comes with every Mac.