In early years, members took turns assigning sketch problems with solutions then critiqued by established architects.
Post, Henry Hardenbergh, Grosvenor Atterbury, Raymond Hood, Ralph Walker, and more recently, Robert A.M. Stern, Frances Halsband, Paul Byard, and Billie Tsien.
Muralists and sculptors are invited to become members, and annual exhibitions have included sections for landscape architecture, painting, sculpture, and decorative arts.
Since 1982, the League has organized Emerging Voices, an annual juried series which features architects and designers throughout North America who have a "significant body of realized work that not only represents the best of its kind, but also creatively addresses larger issues of architecture, landscape, and the built environment.
Six winners, who must be ten years or less out of school, are then invited to present their work in a variety of public fora, including lectures, an exhibition, and on the League’s website.