In 2002, Tokyopop licensed "Chobits" for an English-language translation in North America and marketed it as part of its new unflipped manga line, which reads from right-to-left. Previously, translated manga was typically flipped from its original reading order to a left-to-right one to better suit Western readers. Tokyopop published the series from April 23, 2002, to October 7, 2003, and its translation was distributed in Australia and New Zealand by Madman Entertainment. Tokyopop's license concluded in 2009. At San Diego Comic-Con International 2009, Dark Horse Manga announced an omnibus edition of the series in celebration of Clamp's 20th anniversary. In 2010, it published the two volumes on March 24, and September 29, respectively.