1 files changed, 65 insertions, 1 deletions
diff --git a/docs/rdf_terms.rst b/docs/rdf_terms.rst
index c8468407..a9682325 100644
--- a/docs/rdf_terms.rst
+++ b/docs/rdf_terms.rst
@@ -6,7 +6,71 @@ RDF terms in rdflib
 
 Terms are the kinds of objects that can appear in a quoted/asserted triples. Those that are part of core  RDF concepts are: ``Blank Node``, ``URI Reference`` and ``Literal``, the latter consisting of a literal value and either a `datatype <https://www.w3.org/TR/xmlschema-2/#built-in-datatypes>`_ or an :rfc:`3066` language tag.
 
-All terms in RDFLib are sub-classes of the :class:`rdflib.term.Identifier` class.
+All terms in RDFLib are sub-classes of the :class:`rdflib.term.Identifier` class. A class diagram of the various terms can be seen in the :ref:`term_class_hierarchy` diagram.
+
+.. _term_class_hierarchy:
+.. kroki::
+   :caption: Term Class Hierarchy
+   :type: plantuml
+
+@startuml
+skinparam shadowing false
+skinparam monochrome true
+skinparam packageStyle rectangle
+skinparam backgroundColor FFFFFE
+
+class Node
+
+class Identifier {
+    eq(other) -> bool
+    neq(other) -> bool
+    startswith(prefix: str, start, end) -> bool
+}
+Identifier -up-|> Node
+
+class IdentifiedNode {
+    toPython() -> str
+}
+IdentifiedNode -up-|> Identifier
+
+class URIRef {
+    n3(namespace_manager) -> str
+    defrag() -> URIRef
+    de_skolemize() -> BNode
+}
+URIRef -up-|> IdentifiedNode
+
+
+class Genid
+Genid -up-|> URIRef
+
+class RDFLibGenid
+RDFLibGenid -up-|> Genid
+
+class BNode {
+    n3(namespace_manager) -> str
+    skolemize(authority, basepath) -> RDFLibGenid
+}
+BNode -up-|> IdentifiedNode
+
+class Literal {
+    datatype: Optional[str]
+    lang: Optional[str]
+    value: Any
+
+    normalize() -> Literal
+    n3(namespace_manager) -> str
+    toPython() -> str
+}
+Literal -up-|> Identifier
+
+class Variable {
+    n3(namespace_manager) -> str
+    toPython() -> str
+}
+Variable -up-|> Identifier
+
+@enduml
 
 Nodes are a subset of the Terms that the underlying store actually persists.
 The set of such Terms depends on whether or not the store is formula-aware.