diff --git a/types/entities.ts b/types/entities.ts
index f2af572..ed24d3b 100644
--- a/types/entities.ts
+++ b/types/entities.ts
@@ -126,3 +126,21 @@ export interface Chapter {
   publishedAt: string;
   url: string;
 }
+
+export interface WorkSeries {
+  id: string;
+  title: string;
+  url: string;
+  currentWork: {
+    id: string;
+    index: number;
+    prevWorkId: string | null;
+    nextWorkId: string | null;
+  };
+}
+
+export interface WorkCollection {
+  displayTitle: string;
+  collectionName: string;
+  url: string;
+}