diff --git a/wiki/Mapping_Techniques/Overlap/en.md b/wiki/Mapping_Techniques/Overlap/en.md
index bd224efafdb..83bff402f53 100644
--- a/wiki/Mapping_Techniques/Overlap/en.md
+++ b/wiki/Mapping_Techniques/Overlap/en.md
@@ -1,7 +1,7 @@
 # Overlap
 
-![](./img/overlap.jpg "An example of a hitcircle overlapping a sliderhead.")
+![](img/overlap.jpg "An example of a hit circle overlapping a slider head.")
 
-An overlap appears when [hit objects](/wiki/Hit_Objects) touch each other without stacking.<!--TODO: Insert link to stacking article when it exists-->
+An **overlap** appears when [hit objects](/wiki/Hit_Objects) touch each other without [stacking](/wiki/Mapping_Techniques/Stack).
 
 <!-- this is a stub -->
diff --git a/wiki/Mapping_Techniques/Stack/en.md b/wiki/Mapping_Techniques/Stack/en.md
new file mode 100644
index 00000000000..9aa66d0ce20
--- /dev/null
+++ b/wiki/Mapping_Techniques/Stack/en.md
@@ -0,0 +1,9 @@
+# Stack
+
+![](img/stack.jpg "An example of two hit circles stacking on top of a slider head.")
+
+A **stack** is a set of [hit objects](/wiki/Hit_Objects) that [overlap](/wiki/Mapping_Techniques/Overlap) each other in the playfield<!-- TODO: link -->. The most common objects that are stacked are [hit circles](/wiki/Hit_Objects#hit-circle).
+
+Stacks are automatically created when hit objects are close to perfectly overlapping each other. The time between objects for this to occur is determined by the [beatmap](/wiki/Beatmaps)'s stack leniency<!-- TODO: link -->.
+
+<!-- this is a stub -->
diff --git a/wiki/Mapping_Techniques/Stack/img/stack.jpg b/wiki/Mapping_Techniques/Stack/img/stack.jpg
new file mode 100644
index 00000000000..9fe7d2a7b26
Binary files /dev/null and b/wiki/Mapping_Techniques/Stack/img/stack.jpg differ
diff --git a/wiki/Sitemap/en.md b/wiki/Sitemap/en.md
index 0f45fe716ca..d0c5c33608a 100644
--- a/wiki/Sitemap/en.md
+++ b/wiki/Sitemap/en.md
@@ -121,9 +121,11 @@ tags:
     -   [Formations](/wiki/Mapping_Techniques/Formations)
     -   [Jumps](/wiki/Mapping_Techniques/Jumps)
     -   [Making Good Sliders](/wiki/Mapping_Techniques/Making_Good_Sliders)
+    -   [Overlap](/wiki/Mapping_Techniques/Overlap)
     -   [Rhythm](/wiki/Mapping_Techniques/Rhythm)
     -   [Sliders](/wiki/Mapping_Techniques/Sliders)
     -   [Spinners](/wiki/Mapping_Techniques/Spinners)
+    -   [Stack](/wiki/Mapping_Techniques/Stack)
     -   [Unrankable](/wiki/Mapping_Techniques/Unrankable)
 -   [Mascots](/wiki/Mascots)
     -   [Gallery](/wiki/Mascots/Gallery)