An ambigram is a word, art form or other symbolic representation, whose elements retain meaning when viewed or interpreted from a different direction, perspective, or orientation. (Wikipedia)

Gallery

• Annemie
• Frederick
• Fredrik
• Günther (old version)
• Iris
• Ivan
• Katrin
• Martina
• Sabine
• Silke

More great Ambigrams can be found in Scott Kim's Inversions Gallery.

If you're interested in making your own ambigrams, have a look at how I do the editing with Inkscape. Let me know when you've drawn something interesting.