diff --git a/README.md b/README.md
index 0b5e083d2..6f2ffa25a 100644
--- a/README.md
+++ b/README.md
@@ -64,3 +64,10 @@ Should you discover any security issues, please refer to sigstore's [security pr
 ## Contributions
 
 We welcome contributions from anyone and are especially interested to hear from users of Rekor.
+
+## Additional Documentation
+
+In addition to this README file, this folder contains the additional documentation:
+
+- **oid-info.md**. Rekor OID values.
+- **types.md**. Information about how to sign and upload data in different pluggable types.