The Metropolis of Tomorrow is a 1929 book written and illustrated by Hugh Ferriss. Prominently featuring 60 of Ferriss' drawings, the book is divided into three sections. The first, "Cities of Today", underscores the lack of planning in contemporary cities and the powerful psychological impact that cities have on their inhabitants while also profiling 18 influential modern buildings in five cities. The second section, "Projected Trends", prominently discusses practical concerns related to population density and traffic congestion, demonstrates Ferriss' adherence to some of the key elements of modern architecture (especially functionalism), and then analyzes projected trends in urban design that he supports, as well as a few that he opposes. The third and final section, "An Imaginary Metropolis", describes an ideal future city complete with towering skyscrapers spaced well apart from each other, broad avenues, and a strongly geometric city layout based around centers and sub-centers of buildings that are segregated by function.