Percolator specializes in book cover design and typesetting. It was founded in 1997 as a partnership between Brad Boettcher and Mark Reis and continues today as the solo venture of Mark. 
Over the years, Percolator has designed hundreds of covers and interiors for a variety of publishers. Past and present clients include:
• Bibliomotion
• Davies-Black Publishing
• Free Spirit Publishing
• Hazelden Betty Ford Foundation
• Johns Hopkins University Press
• Milkweed Editions
• Minnesota Historical Society Press
• New Rivers Press
• Nicholas Brealey Publishing
• Redleaf Press
• Search Institute
• University of Minnesota Press
• Virginia Quarterly Review
• Wisconsin Historical Society Press