Before 1900
the hand- & machine-press era · 721 titles in the reference
Books of this era carry no number line and no “First Edition” statement. A first is established by the title-page date, the absence of any later-printing notice, dated publisher’s advertisements bound in at the back, and title-specific points of issue — a typo corrected in later printings, a first-state binding cloth, a canceled leaf. The dust jacket, where one existed at all, almost never survives.
1900s – 1910s
the Edwardian & early-modern decades · 226 titles in the reference
Publishers’ devices and dated title pages do the identifying work. A few British houses begin printing “First published 19—” on the copyright page; most American firsts are still told by what is absent — no impression line, no added printing notice. Surviving first-issue dust jackets become genuinely scarce and start to carry real points.
Search every 1900s – 1910s title in the First-Edition Checker →
1920s – 1930s
the modernist decades · 748 titles in the reference
Some American houses now state “First Edition” or “First Printing,” but the number line is not yet standard, so the dust jacket becomes decisive: first-issue blurbs, the priced flap, and the earliest state of the panel art separate a true first from a later jacketing. This is the era where jacket condition and issue points drive identification.
Search every 1920s – 1930s title in the First-Edition Checker →
1940s – 1950s
the wartime & postwar decades · 1,115 titles in the reference
Stated “First Edition” lines grow common and house systems appear — Doubleday’s blind-stamp/gutter codes are the classic example. Late in the period the number line begins to surface at some trade houses, the convention that would soon take over. Wartime-economy printings and paper add their own first-issue wrinkles.
Search every 1940s – 1950s title in the First-Edition Checker →
1960s – 1970s
the number-line & ISBN revolution · 1,806 titles in the reference
The number line becomes the dominant first-printing indicator across US trade publishing: a “1” present in the sequence marks a first printing (watch house-specific quirks). The ISBN arrives in 1970. Between them, this is the moment first-edition identification became systematic — and the most-collected two decades in the reference.
Search every 1960s – 1970s title in the First-Edition Checker →
1980s – 1990s
the mature number-line era · 2,013 titles in the reference
The full “First Edition” + “1 2 3 4 5 6 7 8 9 10” line is standard, so identification turns on house-specific rules — Random House printing “2” on a true first, book-club tells, and first-issue jackets. Modern-first collecting takes off, and signed first printings become their own market.
Search every 1980s – 1990s title in the First-Edition Checker →
2000s – 2020s
the hypermodern decades · 1,675 titles in the reference
Number lines are universal, so the collectible distinction is state and issue: the earliest printing, the first-issue dust jacket, and signed or limited first printings. Hypermodern collecting rewards spotting the true first of a debut before the market does — the reference tracks the points that separate it.
Search every 2000s – 2020s title in the First-Edition Checker →
Why the decade matters
The single most useful thing to know before you identify a first edition is when it was published. The tells changed completely over two centuries — from dated title pages and points of issue, to stated “First Edition” lines, to the number line that governs almost everything printed since the 1970s. Match the book to its era, then check the title’s specific points on its identification page or run it through the LCCN lookup.