Shelley Muzylowski Allen was born in Manitoba, Canada, and has a B.F.A. in Painting and Intaglio from the Emily Carr Institute of Art & Design (Vancouver, B.C.). In 1998, Shelley worked with the William Morris sculpture team in Washington State as a glass-sculpting assistant through 2004.
In 2005, Shelley established a glass and sculpture studio with her husband, artist Rik Allen at their property in Skagit County, Washington. In addition to being an artists, Shelley and Rik and have taught internationally at the Toyama Institute of Glass in Japan, Nuutajarvii Lasikyla, Finland and the International Glass Festival in Stourbridge, England. They have also taught nationally, including the Penland School of Craft, Pittsburgh Glass Center, and at Pilchuck.
Shelley has been awarded Provincial and Canada Council grants, and her work is held nationally and internationally in public institutions and private collections. In 2008, Shelley had a solo exhibition at the Museum of Northwest Art in La Conner, Washington, titled Modern Menagerie. Other selected shows include The San Juan Museum of Art, Blue Rain Gallery, Santa Fe and Scottsdale; Habatat Galleries, Michigan; Traver Gallery, Seattle; and Schantz Galleries, Massachusetts. In 2012, Shelley was a guest artist at Studio Salvadore in Murano, Italy, where she collaborated with Davide Salvadore on a series of large-scale sculptures.