diff --git a/README.rst b/README.rst
index 6333850..0802a6a 100644
--- a/README.rst
+++ b/README.rst
@@ -59,6 +59,14 @@ threadlib:
 
 Clone threadlib into the folder 'threadlib' inside your OpenSCAD library folder
 
+Your libraries folder should now look similar to this:
+
+libraries
+├── list-comprehension-demos/
+├── scad-utils/
+├── thread_profile.scad
+└── threadlib/
+
 
 Usage
 ===========================
@@ -123,6 +131,8 @@ List of supported threads
 Currently, threadlib knows these threads:
 
 - `Metric threads <http://mdmetric.com/tech/M-thead%20600.htm>`__ (coarse, fine, and super-fine pitches) M0.25 to M600
+- Unified Inch Screw Threads (UNC, UNF, UNEF, 4-UN, 6-UN, 8-UN, 12-UN,
+  16-UN, 20-UN, 28-UN, and 32-UN)
 - `BSP parallel thread <https://www.amesweb.info/Screws/British-Standard-Pipe-Parallel-Thread-BSPP.aspx>`__ G1/16 to G6
 - `PCO-1881 <https://www.bevtech.org/assets/Committees/Packaging-Technology/20/3784253-20.pdf>`__ (PET-bottle thread)