Ama-Con: Amarillo Public Library’s annual celebration of pop culture returns to the Amarillo Civic Center Complex, featuring vendors, cosplay, authors, artists and more. Don’t miss the Geek Prom, too. (11 a.m. to 8:30 p.m.; continues Sunday; 401 S. Buchanan St.; tickets $8 daily, $10 for both; 806-378-3051)