In 2005, Day co-founded World Bicycle Relief, a global non-profit organization, which has provided over 140,000 bicycles to families rebuilding livelihoods, caregivers combating disease, students seeking access to education and entrepreneurs who depend on quality transportation. Her images and storytelling often serve the organization’s campaigns. Day’s artistry extends to the written word including the forward to National Geographic’s book, ‘Wheels of Change: How Women Rode to Freedom’ and a rebuttal to the book, ‘Hope for Africa’. She frequently speaks on behalf of World Bicycle Relief, notably as keynote speaker for Women Bike’s 1st Annual Summit. Day received her M.F.A. in Photography from Columbia College Chicago where she taught for eight years.