Working with Warren Robbins, founding Director of the Museum of African Art, Smithsonian Institution, Morrison conceived an exhibition that linked African Art, African-American art, art by Caucasians in the USA, art of the Caribbean, European art, and art of South America. The exhibition and accompanying researched book-length color catalogue, which Morrison wrote, revealed the important contribution to American art that was made by Howard University and the Barnett-Aden Gallery in the development of not only African-American art, or even American art, but world art in general. The exhibition included artists from countries such as Brazil, Cuba, Ethiopia, France, Germany, Haiti, Nigeria, Sudan, Switzerland, the USA and the UK, and showed the global scope of thinking that originated among African-American artists, curators and scholars of the era, such as W. E. B. DuBois, Langston Hughes, Alain Locke, James Porter, Alonzo Aden and James Herring. Some, including the "Washington Post" and the "Washington Times", called it one of the most important exhibitions history of Washington.