 Attack on Titan has become a commercial success . As of July 2015 , the manga had 52 @.@ 5 million copies in print , with 50 million copies in Japan and 2 @.@ 5 million copies overseas . The release of the anime also saw a boost in the series ' popularity , with it having received critical acclaim for its atmosphere and story . Although it also gained fame in neighboring Asian countries , the series ' themes have been a subject of controversy . 
