What Is a Cancel Leaf? — Correcting Errors in Printed Books
A cancel is a leaf (or leaves) in a printed book that has been removed after printing and replaced with a new leaf containing corrected text. The original leaf that was removed is called the cancellandum (plural: cancellanda), and the replacement leaf is called the cancellans (plural: cancellantia). The practice of canceling and replacing leaves has been used since the earliest days of printing to correct errors, remove objectionable material, update information, or accommodate legal concerns — without the expense of reprinting the entire edition.
Why Cancels Were Made
Textual Errors
The most common reason for a cancel is to correct a significant error discovered after printing but before (or during) binding. Minor typographical errors might be left uncorrected or addressed with an errata slip, but more serious errors — factual mistakes, misattributions, embarrassing misprints — warranted the replacement of the offending leaf.
Legal Concerns
Material that was deemed libelous, seditious, blasphemous, or otherwise legally problematic after printing could be removed and replaced. In periods of strict censorship, publishers sometimes canceled leaves preemptively to avoid prosecution.
Author Revisions
Authors who demanded changes after the sheets were printed (revised dedications, altered passages, updated information) necessitated cancels. The cost of canceling a single leaf was far less than reprinting the entire gathering.
Publisher Decisions
Publishers sometimes canceled title pages to reflect a change in imprint (a new publisher taking over the edition), a new date, or a revised title. Cancel title pages are particularly common in books that changed hands between publishers during the binding process.
How Cancels Are Made
The Physical Process
- The original leaf (cancellandum) is cut away — either by slicing it out close to the gutter (the inner margin near the spine) or by tearing it along the fold
- A new leaf (cancellans) is printed with the corrected text
- The replacement leaf is tipped in (pasted onto the stub of the removed leaf) or sewn into the gathering
Evidence of Cancellation
Cancels leave physical evidence that a trained eye can detect:
Stub — when a leaf is cut away, a narrow strip of paper (the stub) remains visible in the gutter. The cancellans is attached to this stub.
Tipping — the cancellans may be attached by a narrow line of paste along its inner edge, rather than being an integral part of the folded sheet. Under close examination, a tipped-in leaf will show paste residue and may sit slightly differently than the conjugate leaves in the gathering.
Paper differences — the replacement leaf may be on slightly different paper (different batch, different tint) than the surrounding leaves, though printers attempted to match paper as closely as possible.
Type differences — the typesetting on the cancellans may differ from the rest of the book in small ways — different spacing, different catchwords, different font variants — because it was set separately.
Conjugacy — in a normally constructed gathering, leaves exist as conjugate pairs (physically connected by the fold). A cancel disrupts the normal conjugacy pattern — the replacement leaf will not be conjugate with the leaf it “should” be paired with.
Cancels and Collecting
States and Issues
The existence of cancels creates different states or issues of a book:
Uncanceled copies — copies in which the original leaf was not removed. These are sometimes called “pre-cancel” copies and may be rarer than canceled copies (since the publisher intended to cancel all copies but missed some).
Canceled copies — copies containing the replacement leaf. These represent the publisher’s intended final text.
For collectors, the relative desirability of canceled vs. uncanceled copies depends on the specific case:
- An uncanceled copy preserving the original error may be rarer and more bibliographically interesting
- A canceled copy with the author’s revised text may represent the preferred reading
Famous Cancels
Shakespeare’s First Folio (1623) — contains several cancel leaves where errors were corrected during production.
The Great Gatsby (1925) — textual errors in the first printing were corrected in later printings but not through cancels (the type was corrected between impressions).
Mark Twain’s Adventures of Huckleberry Finn (1885) — the first edition had a defaced illustration plate (an obscene alteration to an illustration of Uncle Silas) that was discovered during binding. The altered plate was replaced with a corrected one, creating two states of the first edition.
Identifying Cancels
For Bibliographers
The systematic identification of cancels requires:
- Collation — checking whether all leaves in each gathering are conjugate (physically connected at the fold)
- Comparison — examining multiple copies to identify textual differences between leaves that may indicate cancel/cancellandum variants
- Physical examination — looking for stubs, tipping evidence, paper differences, and type differences
For Collectors
When examining a book for purchase:
- Check the gathering structure at key points (title page, dedication, any leaf mentioned in bibliographic references as a known cancel point)
- Look for stubs in the gutter
- Compare with bibliographic references that note known cancels for the edition
- Ask the dealer — reputable dealers will note known cancels in their descriptions
The cancel is one of the great recurring motifs of bibliographic history — a small, quiet drama of error, discovery, and correction played out in the physical body of the book. For collectors and bibliographers, identifying cancels provides insight into the production process, the author’s intentions, and the sometimes fraught relationship between the text as planned and the text as published.