Septology (Septologien) — beginning with The Other Name (Det andre namnet: Septologien I–II)

No mass-market book-club issue defines the collectible first here — Bokklubben and other Norwegian retail channels simply distribute the Samlaget trade hardcover under the same ISBN 9788252196177, so a "Bokklubben" listing is not automatically a distinct book-club edition. The traps are format, printing, and translation state rather than a book club: (1) the 2022 Samlaget one-volume collected "Septologien" (all seven parts, ISBN 9788234009846, ~895 pp.) is frequently mistaken for the first — it is not; (2) the 2020 heftet/pocket paperback (ISBN 9788234002199, 513 pp., 14 Feb 2020) is a later issue, not the 2019 hardcover first; and (3) on the English side, Transit Books' 7 April 2020 US printing and any post-Nobel (late 2023 onward) reprints/reissues of the Fitzcarraldo edition are later states, not the 10 October 2019 first English printing.