The tautly focused pursuit of infinitesimal difference within the incredibly tiny is an intriguing pictorial obsession, and Ewan Gibbs has a kind of atom vision. His standard procedure is to take blackand-white photographs and translate them onto paper into a grid of multiple thousands of meticulously drawn cells, each precisely the same minute size, many hatched with a small mark, parallel row after parallel row, to create a teeming, handmade benday dot matrix. From cell to cell, the minuscule differences in the pressure of his pencil give each dot its near-microscopic uniqueness, and through