His paintings can be found in numerous galleries, museums, and private collections all over the southern United States. Dennis has also worked on several special projects, including the recent mural for Burke Mission Station in Morganton, North Carolina in September, 2001. Warren Dennis has exhibited in over 55 one-person exhibitions, numerous group shows as well touring exhibitions, and is represented in several galleries across North Carolina and Tennessee, including Carlton Gallery, Banner Elk, NC; Jay Etkin Gallery, Memphis, TN; New Elements Gallery, Wilmington, NC; and Steinway Gallery, Chapel Hill, NC.