diff --git a/README.md b/README.md
index 0f2308a..8e3c854 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,12 @@ thumbor.buildImage("http://example.com/image.png")
     .toUrl()
 // Produces: /unsafe/48x48/example.com/image.png
 
+thumbor.buildImage("http://example.com/image.png")
+    .crop(10, 20, 90, 100)
+    .toUrl()
+// Produces: /unsafe/20x10:100x90/example.com/image.png
+// Note that the parameters are accepted as y1, x1, y2, x2 — Do not try to use x1, y1, x2, y2
+
 thumbor.buildImage("http://example.com/image.png")
     .crop(10, 10, 90, 90)
     .resize(40, 40)