diff --git a/README.md b/README.md
index d194cfe..004443e 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,15 @@ This example shows how to load all nix files inside `./modules`, following the
 }
 ```
 
+## Quick Usage (outside a modules evaluation)
+
+If you want to get a list of nix files programmatically outside of a modules evaluation,
+you can use the import-tree API (read below for more).
+
+```nix
+(import-tree.withLib pkgs.lib).leafs ./modules # => list of .nix files
+```
+
 ## Ignored files
 
 Paths that have a component that begins with an underscore are ignored.
@@ -30,6 +39,7 @@ Paths that have a component that begins with an underscore are ignored.
 The following goes recursively through `./modules` and imports all `.nix` files.
 
 ```nix
+# Usage as part of any nix module system.
 {config, ...} {
   imports = [  (import-tree ./modules)  ];
 }