diff --git a/contexts/default/README.md b/contexts/default/README.md
index c2c376e..f532652 100644
--- a/contexts/default/README.md
+++ b/contexts/default/README.md
@@ -214,21 +214,28 @@ Subjects can also be expressed using an object with the following elements: `nam
}
```
-In many fields and territories, a number of controlled vocabularies are in use to identify subjects. For example THEMA is used in the publishing industry to provide an international subject scheme.
-
-To indicate that a subject belongs to a particular scheme, the `scheme` element is available. The `scheme` must be a URI.
-
The `code` element is available to provide the string that identifies the subject in a given scheme:
```json
"subject": {
"name": "Manga: Shonen",
"sortAs": "Shonen",
- "scheme": "http://www.editeur.org/151/Thema/",
+ "scheme": "https://ns.editeur.org/thema/",
"code": "XAMG"
}
```
+To indicate that a subject belongs to a particular scheme, the `scheme` element is available. The `scheme` must be a URI.
+
+This document identifies the following subject schemes along with a recommended URI value for them:
+| Scheme | URI |
+| ------- | --- |
+| BIC | |
+| BISAC | |
+| CLIL | |
+| Thema | |
+
+
## Collections & series
A Web Publication Manifest may indicate that it belongs to one or multiple collections/series.