diff --git a/README.md b/README.md
index 3dd91a4..fa2933e 100644
--- a/README.md
+++ b/README.md
@@ -56,3 +56,12 @@ cmake ..
 make
 make test
 ```
+
+## Quick Reference
+
+```cpp
+auto s = strutil::trim("  hi  ");     // "hi"
+auto v = strutil::split("a,b", ',');  // {"a","b"}
+auto u = strutil::to_upper("hi");     // "HI"
+bool b = strutil::starts_with(s, "x"); // false
+```