Cross-posted from Gilt Taste. The first thing you'll notice about the Lexicon of Sustainability is how damn cool it looks. Sure, Douglas Gayeton's smart, visually packed collages connect the dry terminology of the food movement to real people and places -- no small feat. But it's his super-personal aesthetic and warmth as a storyteller that draw you in. Gayeton got the idea for the Lexicon project about two years ago, in the middle of a dinner party, when a guest butchered the definition of "food miles." If Gayeton could define and build out the language of sustainability, he thought, he …