Nike is peeling back the mystique surrounding HTM. The Swoosh recently presented an oral history of what the brand calls its "most elusive line" -- featuring first-person accounts from Hiroshi Fujiwara, Tinker Hatfield and Mark Parker -- which preceded the launch of HTM options on a trio of classic Air Max models on NIKEiD. Now, Nike presents a handy chart of HTM sneaker releases, labeled as a "Taxonomy of HTM." The releases are broken up into three different "species": Design, Heritage and Technology, with the infographic literally connecting the dots among all the models in the HTM archive.