Onepiece (stylized in all caps) is a book featuring 102 volumes[3] of Eiichiro Oda's One Piece unofficially compiled by artist Ilan Manouach.

It is most notable for being regarded as one of the thickest single-volume books to ever be published,[4] with a total page count of 21,540.

[2] According to French publishing company JBE, because of its unconventional size, the book is meant to be treated as a sculpture.

[5] The spine features artwork of the story's protagonist Monkey D. Luffy and his many adventures throughout the series.

[1] Manouach accomplished his goal by printing out digital editions of the manga series and then binding them together.