The mission of the Umbrella Cover Museums states that it is "dedicated to the appreciation of the mundane in everyday life. It is about finding wonder and beauty in the simplest of things, and about knowing that there is always a story behind the cover."
The idea for the museum came when Hoffman was cleaning out a closet and came across seven umbrella covers. The museum began in Hoffman's kitchen and was moved to a larger location as the collection grew.
The museum's collection ranges in size from a two-and-a-half-inch Barbie doll cover to a six-foot patio umbrella sleeve. It has hosted special exhibitions including “People and Their Covers” and “New Umbrella Cover Fashions.”
On 7 July 2012, Hoffman's umbrella cover collection of 730 has set world record.
The museum is closed during the winter. Guided tours include Hoffman, who is also a musician, singing "Let a Smile Be Your Umbrella" while playing an accordion.