Explore Font Combinations with TypeDNA

TypeDNA ($49) is an unusually useful font tool: it analyzes the shapes of all your fonts, then suggests “similar” or “harmonious” fonts — both from your own collection and from those for sale on the Web. Notably, their website has an ingenious interactive overview of the product that lets you step through each of its features by pressing forward and backward arrow buttons.

You can read my review of TypeDNA for Macworld magazine here.