1Q84 (いちきゅうはちよん, Ichi-Kyū-Hachi-Yon, One Q Eighty-Four or Q-teen Eighty-Four or ichi-kew-hachi-yon) is a novel by Haruki Murakami, first published in three volumes in Japan in 2009–10. The novel quickly became a sensation, with its first printing selling out the day it was released, and reaching sales of one million within a month.