Photograph from Vignelli: From A to Z, written by Massimo Vignelli, published by Images Publishing Group Pty Ltd.

More on NPS Unigrid.

The vignelli design team devised a set of modular paper sizes to reduce waste, established a modular grid, limited type to just Helvetica and Times Roman, set high standards for photography and illustrations, designed a format for the NPS newsletters, designed a format, grid and typography for the NPS books and posters and a signage and information system for the parks.