Giers displayed his photographs at various fairs in the Nashville region. He nearly swept the photography prizes at the Tennessee Agricultural and Mechanic Association Fair in October 1871. He exhibited his work at the Vienna Exposition in 1873 and the United States Centennial Exposition in Philadelphia in 1876. His photographs are now part of the collections of the Tennessee State Library and Archives, the Calvin M. McClung Collection in Knoxville, and the New York Public Library. A self-portrait of Giers is part of the collections of the National Portrait Gallery in Washington.