What Are the Blade of the Immortal English Editions?
Dark Horse Comics has published Blade of the Immortal in English since June 1, 1996, when the first monthly comic issue appeared: before most of the American manga boom, and in a format built for American comic shops. The monthly run lasted eleven years and 131 issues, ending on November 14, 2007, as the last manga Dark Horse still published in the American comic format. The series simply changed containers: trade paperbacks had run alongside since 1997, and they continued alone until the 31st and final volume, Final Curtain, on April 1, 2015.
Two quirks define the English shelf. First, the English volumes do not match the Japanese ones: Dark Horse kept story arcs whole inside each book rather than slicing where the tankobon sliced, so the numbering drifted from the Japanese by as much as a volume, and editor Philip Simon steered the contents back toward alignment from trade volume 21 onward. Second, every format since has kept the 1996 reading arrangement: left to right, panels rearranged rather than flipped, as documented on the arrangement page.