Explanation

Code 18 is used to indicate that a publication contains photographs.

If a publication consists entirely of photographs, the code is set in a <PrimaryContentType> element, otherwise it is set in <ProductContentType> element.

Only for use in ONIX 3.0 or later.

Schema.org mapping

Code 18 is the equivalent of setting a visual access mode using schema.org metadata.

Examples

Example 1 — Nonfiction book with photographs 
…
<PrimaryContentType>10</PrimaryContentType>
<ProductContentType>18</ProductContentType>
…
Example 2 — Book of photographs 
…
<PrimaryContentType>18</PrimaryContentType>
…

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