He has been a professional graphic artist since 1978, and has worked on staff as a designer, typographer and illustrator at the Kansas City Star, the Wichita Eagle and the St. Louis Post-Dispatch. His freelance design and illustration studio, Groth Graphics, has a long client list that includes McDonnell-Douglas (now Boeing) Aircraft, the Associated Press, Purina Mills, Adriatic Travel, Willow Music, Hallmark Cards, The American Heart Association, the Washington Post, Kansas City Magazine, The Arizona Daily Star, and Plima Magazine, among others.