diff --git a/mimic/contents.md b/mimic/contents.md
index e36c608..2f97f1b 100644
--- a/mimic/contents.md
+++ b/mimic/contents.md
@@ -1,7 +1,8 @@
 ---
 title: The murderous history of loot boxes
 contents:
-    - PLACEHOLDER COVER
+    - img: purple_the-murderous-history-of-loot-boxes.jpg
+      alt: ''
 
     - type: mimic-colophon
       original: original text
diff --git a/nim/contents.md b/nim/contents.md
index dbc2afa..3776f12 100644
--- a/nim/contents.md
+++ b/nim/contents.md
@@ -2,7 +2,8 @@
 title: Nim Fanfic
 credits: Gersande
 contents:
-    - PLACEHOLDER COVER
+    - img: purple_nim.jpg
+      alt: ''
 
     - July 2056, the Nim population has hit a point of stagnation.
     - |-
diff --git a/one-sentence-game-ideas/contents.md b/one-sentence-game-ideas/contents.md
index 60d694c..3cd81a2 100644
--- a/one-sentence-game-ideas/contents.md
+++ b/one-sentence-game-ideas/contents.md
@@ -2,7 +2,8 @@
 title: One-sentence game ideas
 credits: XPUB
 contents:
-    - PLACEHOLDER COVER
+    - img: purple_one-sentence-game-ideas.jpg
+      alt: ''
     - |-
         You are in an empty 
         room with 13 doors 
diff --git a/what-is-a-loot-box/contents.md b/what-is-a-loot-box/contents.md
index cbfff39..c041249 100644
--- a/what-is-a-loot-box/contents.md
+++ b/what-is-a-loot-box/contents.md
@@ -2,7 +2,8 @@
 title: What is a loot box?
 credits: XPUB
 contents:
-    - PLACEHOLDER COVER
+    - img: purple_what-is-a-loot-box.jpg
+      alt: ''
     - A closed box with objects inside.
     - A digital or physical box.
     - A virtual box inside video games containing randomized items.