"The church is a complex set of interlocking rectangles embellished with simple geometric decoration on the piers between the high windows. Although it can appear gloomy from the outside, the inside is beautifully lit by the skylight and clerestory windows."
--Wurman, R. S. (1995). Chicago Access. Access Press, Chicago.
"Wright's plan for Unity Temple locates the main entrances behind the walls on the building's west and east sides, avoiding busy Lake St. The columns, with their abstract, conventionalized foliate design, give he building the feel of a Mayan temple."
"Unity Temple's auditorium is a cube. Light enters from twenty-five art-glass skylights set in coffers and from clerestory windows on all four sides. Wright tinkered with the elaborate wood trim scheme until very late in the construction process. The organ pipes are hidden behind the screen above the pulpit. Exit stairs flank the pulpit. Entry is through the cloisters below the lower balconies. The chairs are reproductions of Wright designs for other buildings. The church can seat more than four hundred people in pews on the main floor and in two balconies on the remaining three sides of the cube."
--Cannon, P. F. (2006). Hometown Architect: the complete buildings of Frank Lloyd Wright in Oak Park and River Forest, Illinois. San Francisco: Pomegranate. p.101-106