--- a/STYLE.md	Thu Jul 12 09:01:40 2018 +0200
+++ b/STYLE.md	Wed Jul 18 13:55:49 2018 +0200
@@ -423,6 +423,23 @@
     auto o = my_object("foo");
 ```
 
+### String views
+
+Use `std::string_view` each time you need a string that you will not own, this
+includes: temporary arguments, return values, compile time constants.
+
+```cpp
+const std::string_view version("1.0");
+
+auto find(std::string_view id) -> std::optional<int>
+{
+    if (auto it = foo.find(id); it != foo.end())
+        return it->second;
+
+    return std::nullopt;
+}
+```
+
 CMake
 =====