diff --git a/README.md b/README.md
index 362dcbf..98be223 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://tinyletter.com/jbranchaud).
 
-_1061 TILs and counting..._
+_1062 TILs and counting..._
 
 ---
 
@@ -1181,6 +1181,7 @@ _1061 TILs and counting..._
 - [Reset Target tslime Pane](vim/reset-target-tslime-pane.md)
 - [Reverse A Group Of Lines](vim/reverse-a-group-of-lines.md)
 - [Rotate Everything By 13 Letters](vim/rotate-everything-by-13-letters.md)
+- [Rotate The Orientation Of Split Windows](vim/rotate-the-orientation-of-split-windows.md)
 - [Running Bundle With vim-bundler](vim/running-bundle-with-vim-bundler.md)
 - [Scrolling Relative to the Cursor](vim/scrolling-relative-to-the-cursor.md)
 - [Search Backward Through A File](vim/search-backward-through-a-file.md)
diff --git a/vim/rotate-the-orientation-of-split-windows.md b/vim/rotate-the-orientation-of-split-windows.md
new file mode 100644
index 0000000..9ea04e9
--- /dev/null
+++ b/vim/rotate-the-orientation-of-split-windows.md
@@ -0,0 +1,18 @@
+# Rotate The Orientation Of Split Windows
+
+Let's say you have a vim session going with a single window/buffer open. If you
+were to then open another file with the split command (e.g. `:sp README.md`),
+then you'd have a horizontal split. With one file above and one file below.
+
+You can rotate the orientation of the split to be a vertical split with one
+file on the left and another on the right. You can do this with a _Window
+Command_—`Ctrl-W H` (that's `ctrl-w` and then capital `H`).
+
+If you want to go the other direction—from a vertical split to a horizontal
+split—you can use `Ctrl-W J` (that's `ctrl-w` and then capital `J`).
+
+This trick only works when there is a split between two windows. When
+additional splits are involved, it will rotate the focused window to that
+orientation and leave the others stacked in their current orientation.
+
+See `:h CTRL-W` for more details on these and other Window Commands.