Diane P. Tuccillo was the long-time young adult coordinator at the City of Mesa Library in Arizona, and then served as Teen Services Librarian at the Poudre River Public Library District in Fort Collins, Colorado beginning in 2007 where she co-led the Interesting Reader Society (Teen IRS) TAG. Tuccillo has been actively involved in many professional organizations and activities, including YALSA and ALAN; and has been a book reviewer and article contributor for professional journals including School Library Journal and Voice of Youth Advocates (VOYA) magazine.