President of the Center for Interim Programs, which was founded in 1980 as the first independent gap year counseling  service in the U.S. She is an expert in this unique field, drawing on her own two gap years and 26 years working as a gap year counselor with over 1000 individuals. She has visited numerous programs worldwide and been a keynote and panel speaker for NACAS, HECA, IECA, the USA Gap Year Fairs, as well as at high schools nationwide. Bull has a BA in Anthropology from UVA and a Master of Education from Harvard University.