YALLFest is a public two-day annual young adult book festival in Charleston, South Carolina that is the largest of its kind in the South. The festival was founded in 2011 by Jonathan Sanchez of the Charleston bookstore Blue Bicycle Books along with authors Kami Garcia and Margaret Stohl. Author Melissa de la Cruz joined as Director of Development in 2012. Authors Veronica Roth and now co-chair the festival. In 2015, Stohl and de la Cruz co-founded a sister festival, YALLWEST, that occurs every spring in Santa Monica, California.