These new titles in Princeton Architectural Press's popular Building Blocks series highlight two more icons of modern architecture, as portrayed by renowned architectural photographer Ezra Stoller. The John Hancock Center in Chicago (1966-70) was designed by Bruce Graham and engineered by Fazlur Kahn of Skidmore, Owings & Merrill; this cross-braced tower is a landmark on the Chicago skyline. Marcel Breuer's granite sheathed Whitney Museum of American Art (1964-66), with its inverted ziggurat profile and moat like sculpture court, is an icon of the New York streetscape. Each building is shown in its original condition, as the architect intended it to be viewed. A brief introduction and newly drawn plans and elevations make these books essential photographic histories of important works of modernism.