diff --git a/onlp/applications/concepts.md b/onlp/applications/concepts.md
index a70e7dda..f47a4b6a 100644
--- a/onlp/applications/concepts.md
+++ b/onlp/applications/concepts.md
@@ -77,6 +77,8 @@ You can interrogate the Fan OID from the PSU using the normal Fan API, but the F
 These parent/child relationships allow the user of the ONLP APIs to enumerate the system topolology as a directed acyclic graph at any given time.
 OID relationships can change over time -- perhaps you remove an existing PSU which contains a temperature sensor and replace it with a PSU that does not.
 
+Here is an example OID inheritance relationship you might find on a normal pizza-box switch:
+<img src="http://opencomputeproject.github.io/OpenNetworkLinux/onlp/applications/oid-diagram.png">
 
 ## OID Interactions
 
@@ -156,4 +158,4 @@ int onlp_<type>_info_to_user_json (onlp_<type>_info_t*, cJSON **, uint32_t flags
 There is no ```from_user_json``` as the representation is not sufficient to reconstruct the information structure.
 
 ---
-[Next: APIs](http://opencomputeproject.github.io/OpenNetworkLinux/onlp/applications/apis)
\ No newline at end of file
+[Next: APIs](http://opencomputeproject.github.io/OpenNetworkLinux/onlp/applications/apis)