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Dictionary termTrack AProposedv2026.2

Letter to editor

A short scholarly communication submitted to a journal in response to a previously-published article in that journal, raising questions, corrections, alternative interpretations, or additional evidence, typically published with a reply from the original authors.

ByCASRAI Editorial Board
· Last updated 5 Sept 2026
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Examples

Worked examples

  • Is an instance

    A 400-word letter in JAMA pointing out a statistical inconsistency in a recent original article, with an authors' reply

Counter-examples

Looks similar, but isn't

  • Not an instance

    An informal email to a journal editor is not a published letter to the editor

Editorial commentary

A letter to the editor is a short scholarly communication submitted to a journal in direct response to a previously-published article in that same journal — raising questions, identifying errors, offering alternative interpretations, or presenting additional evidence. It is conventionally published together with a reply from the original article’s authors, making it the canonical mechanism for post-publication peer review within the traditional journal system.

How this differs from a commentary

Where a commentary can address a broader development in the field and is not necessarily tied to one specific prior article or paired with an authors’ reply, a letter to the editor is narrower by convention: it responds to one specific published article, and the paired-reply structure is close to standard practice. Both are peer-reviewed and citable, but a letter to the editor is not the same thing as an informal email or message sent privately to a journal’s editorial staff — only the published, citable version counts as this output type.

Example

A short published letter pointing out a statistical inconsistency in a recently-published original research article, appearing in a subsequent issue alongside a reply from that article’s authors addressing the point raised.

Also known as

Letter to the editor · Correspondence (letter)

Machine-readable encodings

Use in your systems

JATS XML <role> element
xml
<role vocab="credit"
      vocab-identifier="https://casrai.org/dictionary/"
      vocab-term="Letter to editor"
      vocab-term-identifier="https://casrai.org/dictionary/term/letter-to-editor" />
Schema.org DefinedTerm (JSON-LD)
json
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  "@type": "DefinedTerm",
  "@id": "https://casrai.org/dictionary/term/letter-to-editor",
  "name": "Letter to editor",
  "identifier": "https://casrai.org/dictionary/term/letter-to-editor",
  "description": "A short scholarly communication submitted to a journal in response to a previously-published article in that journal, raising questions, corrections, alternative interpretations, or additional evidence, typically published with a reply from the original authors.",
  "inDefinedTermSet": "https://casrai.org/dictionary/domain/research-outputs#set",
  "url": "https://casrai.org/dictionary/term/letter-to-editor",
  "alternateName": [
    "Letter to the editor",
    "Correspondence (letter)"
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "publisher": {
    "@id": "https://casrai.org/#organization"
  },
  "author": {
    "@id": "https://casrai.org/#editorial-team"
  },
  "datePublished": "2026-05-21T02:05:11",
  "dateModified": "2026-09-05T17:30:47",
  "inLanguage": "en-GB",
  "isAccessibleForFree": true
}

Referenced across the research world

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