List of best-selling comic series

This list is for comics printed in a traditional book format (paperback or hardcover), typically with a similar number of pages as novels.

The list includes graphic novels printed exclusively in this format, and trade paperback/hardcover books which compile periodical comic chapters/issues into larger collected volumes.

Unlike the paperback book format, floppy comics are thinner periodicals and stapled together.

Each floppy comic issue is typically 20–40 pages, and usually consists of a single chapter (as opposed to a larger comic book volume that typically includes multiple chapters).

According to the most recently available data, the best-selling American single-issue comic of all time was X-Men #1, which was published in 1991 and has since sold almost 8.2 million copies.