diff --git a/README.md b/README.md
index 228db11..5596a36 100644
--- a/README.md
+++ b/README.md
@@ -21,4 +21,39 @@ This small project provides a web based tool for running a bespoke randomized MT
 
 ## Usage Instructions
 
-Should go here :)
+Here is a collection of notes about how the interface operates:
+
+* When the page loads (or reloads) the game is reset
+  * Card count is set to zero, but not displayed
+  * The server-side list of played cards is emptied
+  * Any displayed cards are removed
+* Long pressing (press and hold) an image will toggle a card enabled or disabled
+  * Disabled images are not in the pool of available cards when selecting a random card
+  * If it is semi-transparent it is disabled
+  * if it is not semi-transparent it is enabled
+  * Card state can be edited in the management interface
+* Clicking the **Show First Card** button will show the first card
+  * Note that the very first card does NOT increment the card count
+* Clicking the **Show Second Card** button will:
+  * If a single card is displayed it will show a second card
+  * If a second card is displayed it will replace the existing second card
+  * Note that the **Show Second Card** button does not appear until at least one card is displayed
+* Clicking the **Sun** (yellow) icon starts a game
+  * A dice is rolled (turn up the volume to hear a dice roll!)
+  * The dice results are set to the server as the starting card count
+  * The dice roll is displayed over the diamond icon
+* Clicking the **Fire** (red) icon will replace the most recently played card
+  * The replacement card is **NOT** flagged as played for the current session
+  * The replaced card is **STILL** flagged as played
+* Clicking the **Skull** (gray) icon will reverse the most recent card play
+  * The removed card will be set as "unplayed" in the current session and may show up again
+  * It is impossible to go back further than the first card played
+  * The card count will go backwards to match the reversed play
+* Clicking the **Water** (blue) icon will hide the dice roll number displayed on the **Sun** icon
+  * This is currently pointless as the dice roll is always hidden, but the functionality is retained
+* Clicking the **Diamond** (bottom right) icon will reset the game session
+  * Click once to stage the reset and the number will turn red
+  * Click a second time to finish resetting the session
+  * If it is not clicked a second time before another action is made it will go back to normal
+* Clicking the **Tree** (green) icon will open the management interface in a new tab
+  * This requires login credentials