Type of Article


Indicates what kind of article this is, for example, a research article, a commentary, a book or product review, a case report, a calendar, etc.


All articles should be assigned types if possible. If the article is not one of the listed types or the type of article cannot be determined, the “other” attribute value may be used or the attribute may be omitted.

When the article is a commentary on another article, for example, a correction or addendum, this attribute is metadata for the commentary itself; it does NOT define the kind of article that is being corrected or amended.


This attribute may be used on the top-most <article> element to provide article typing information for retrieval or record keeping. Many publishers indicate the type of article, either in an attribute like this one, or with unique element declarations (such as <review> or <calendar>), and this attribute has been designed to preserve that information.

Attribute Values

In Elements

<article> Article
<sub-article> Sub-article
Value Meaning
abstract The article itself is an abstract of a paper or presentation which has been presented or published separately.
addendum Additional information about or clarification of another published article (The similar value “correction” corrects an error in previously published material.)
announcement Material being announced in the publication; such material may or may not be directly related to the publication.
article-commentary The article has as its subject or focus another article or articles; this article comments on the other article(s). For example, for a controversial article, the editors of the publication might invite an author of an opposing opinion to comment on the first article and publish the two together.
book-review Review or analysis of one or more printed or electronic books (The similar value “product-review” is a review or analysis of a product, service, or website.)
books-received Notification of items such as books that have been received by the publication for review or other consideration
brief-report A short and/or rapid announcement of research results
calendar A list of events
case-report Case study, case report, or other description of a case
correction A modification or correction of previously published material (sometimes called “erratum” or “errata”) (The similar value “addendum” merely adds to previously published material.)
discussion Invited discussion related to a specific article or issue.
editorial Opinion piece, policy statement, or general commentary, typically written by staff of the publication (The similar value “article-commentary” is reserved for a commentary on a specific article or articles.)
in-brief Summary of items in the current issue.
introduction An introduction to the publication, a series of articles within the publication, etc., typically for a special section or issue.
letter Letter to the publication or to its editors, typically commenting upon a published item
meeting-report Report of a conference, symposium, or meeting
news News item, typically labeled “News”
obituary An announcement of a death or an appreciation of a colleague who has recently died
oration Reprint of a speech or oral presentation
other None of the article types explicitly named in this list
product-review Description, analysis, or review of a product, service, website, etc., for example, a software package (The similar value “book-review” provides the same sort of review or description of a published work.)
reply Reply to a letter or commentary, typically by the original author commenting upon the comments
research-article Research article, usually describing original research (The related value “review-article” describes a literature review, research summary, or state-of-the-art article.)
retraction Retraction or disavowal of previously published material
review-article Review or state-of-the-art summary article (The related value “research-article” describes original research.)
Restriction: This attribute may be specified if the element is used.