Margaret L. Sullivan, MA, is an independent consultant and principal at Library Resource Group, LLC. She holds a master's degree in communication arts from the University of Wisconsin-Madison. Her published works include AASL's Library Spaces for 21st Century Learners: A Planning Guide for Creating New School Library Concepts along with articles on space planning in School Library Journal, Knowledge Quest, Teacher Librarian, and American School & University. For 28 years, Sullivan was an executive at the former Highsmith Inc., a leading supplier to schools and libraries, ending her career there as director of merchandising and marketing.