Now is Not the Time to Panic, by Kevin Wilson

This heartwarming and heartbreaking novel explores the intersection of art and coming-of-age through the experience of two Tennessee teenagers. In 1996--before the internet and memes--the pair create a poster and plaster their small town with thousands of Xeroxed copies. People don't know what to make of it and the community--then the nation--goes wild with speculation. Wilson, however, stays focused on Frankie, the girl who thought up the mystifying phrase, showing how her art both upended and added meaning to her life.