Architect and interior and product designer Matteo Thun needed something that functions like “a phone book” to show the varied work for which he has become known over the course of his career. That work includes co-founding (with Ettore Sottsass) Memphis—the industrial design collective that defined Italian design in the 1970s and 1980s—and also the hotels, private residences, housewares, and lighting designed by his own firm, Matteo Thun & Partners. The solution was to create The Index Book, released this April by Hatje Cantz.