diff --git a/app/(marketing)/about/page.tsx b/app/(marketing)/about/page.tsx
index 57ab556..a3695e1 100644
--- a/app/(marketing)/about/page.tsx
+++ b/app/(marketing)/about/page.tsx
@@ -1,4 +1,5 @@
 import messages from "../../../messages/en/index";
+import { getAssetPath, governanceBookletPath } from "../../../lib/assetUtils";
 import { getTranslation } from "../../../lib/i18n/getTranslation";
 import AboutHeader from "../../components/type/AboutHeader";
 import type { AboutHeaderSegment } from "../../components/type/AboutHeader";
@@ -55,7 +56,7 @@ export default function AboutPage() {
         title={page.book.title}
         description={page.book.description}
         buttonText={page.book.buttonText}
-        buttonHref={page.book.buttonHref}
+        buttonHref={getAssetPath(governanceBookletPath())}
         imageAlt={page.book.imageAlt}
       />
       <FaqAccordion title={page.faq.title} items={faqItems} />
diff --git a/docs/guides/static-assets.md b/docs/guides/static-assets.md
index 355000e..e91e102 100644
--- a/docs/guides/static-assets.md
+++ b/docs/guides/static-assets.md
@@ -48,6 +48,7 @@ stage. Raster → SVG conversion is tracked in
 | `marketing/section-number-*.svg` (×3) | SectionNumber | **Done** — SVG |
 | `marketing/avatar-*.svg` (×3) | Avatar / ASSETS | **Done** — SVG |
 | `marketing/hero-image.png` | HeroBanner | **Design review** — likely keep raster |
+| `marketing/governance-booklet.pdf` | About / Book | **Done** — PDF (`governanceBookletPath()`) |
 | `logos/gitlab.svg` | Footer / social | **Done** — SVG |
 
 ## Related docs
diff --git a/lib/assetUtils.ts b/lib/assetUtils.ts
index cb471a2..ade72f8 100644
--- a/lib/assetUtils.ts
+++ b/lib/assetUtils.ts
@@ -97,6 +97,11 @@ export function sectionNumberPath(n: 1 | 2 | 3): string {
   return `assets/marketing/section-number-${n}.svg`;
 }
 
+/** Downloadable governance booklet PDF (About / Sections / Book). */
+export function governanceBookletPath(): string {
+  return "assets/marketing/governance-booklet.pdf";
+}
+
 /** Home feature grid panel art in `public/assets/marketing/`. */
 export type FeaturePanelKey = "support" | "exercises" | "guidance" | "tools";
 
diff --git a/messages/en/pages/about.json b/messages/en/pages/about.json
index 1e7e08b..3b38f4f 100644
--- a/messages/en/pages/about.json
+++ b/messages/en/pages/about.json
@@ -1,5 +1,5 @@
 {
-  "_comment": "About page content. book.buttonHref is \"#\" as a stub until the book download endpoint or asset URL is wired.",
+  "_comment": "About page content. Book download href is wired in app/(marketing)/about/page.tsx via governanceBookletPath().",
   "aboutHeader": {
     "segments": [
       { "type": "word", "text": "CommunityRule" },
@@ -73,7 +73,6 @@
     "title": "Get the Community Rules Book",
     "description": "Community Rules is a simple tool to help make great communities even better and healthier. It includes nine templates for organizational structures that communities can choose from, combine, or react against.",
     "buttonText": "Download Book",
-    "buttonHref": "#",
     "imageAlt": "Structure Before Crisis book cover"
   },
   "faq": {
diff --git a/public/assets/marketing/governance-booklet.pdf b/public/assets/marketing/governance-booklet.pdf
new file mode 100644
index 0000000..241adce
Binary files /dev/null and b/public/assets/marketing/governance-booklet.pdf differ