diff --git a/src/renderer/book.ts b/src/renderer/book.ts
index eb60941..c05b990 100644
--- a/src/renderer/book.ts
+++ b/src/renderer/book.ts
@@ -845,9 +845,20 @@ export function initBook(api: FolioAPI) {
     if (editorView.hasFocus) redo(editorView);
     else document.execCommand("redo");
   });
+  api.onSelectAllRequested(() => {
+    if (!fullBookView.classList.contains("hidden")) {
+      fullBookEditor.focus();
+      selectAll(fullBookEditor);
+    } else if (editorView.hasFocus) {
+      selectAll(editorView);
+    } else {
+      document.execCommand("selectAll");
+    }
+  });
 
   setChapterButtons(false);
   void renderRecents();
 
   (window as any).__folioEditor = editorView;
+  (window as any).__folioFullBookEditor = fullBookEditor;
 }
diff --git a/tests/run-e2e.sh b/tests/run-e2e.sh
index 492d33c..fbbc9e7 100755
--- a/tests/run-e2e.sh
+++ b/tests/run-e2e.sh
@@ -5,7 +5,9 @@
 # chain, prints a JSON summary, and quits. Inert unless run explicitly.
 set -e
 BOOK=$(node -e 'const fs=require("fs"),path=require("path"),os=require("os");const d=fs.mkdtempSync(path.join(os.tmpdir(),"folio-e2e-"));fs.mkdirSync(path.join(d,"chapters"),{recursive:true});fs.writeFileSync(path.join(d,"folio.json"),JSON.stringify({app:"folio",version:1,title:"E2E Book",chapterOrder:[],chapters:{}}));process.stdout.write(d);')
+BOOK2=$(node -e 'const fs=require("fs"),path=require("path"),os=require("os");const d=fs.mkdtempSync(path.join(os.tmpdir(),"folio-e2e2-"));fs.mkdirSync(path.join(d,"chapters"),{recursive:true});fs.writeFileSync(path.join(d,"folio.json"),JSON.stringify({app:"folio",version:1,title:"E2E Book 2",chapterOrder:[],chapters:{}}));process.stdout.write(d);')
 export FOLIO_SELF_TEST=1
 export FOLIO_TEST_BOOK="$BOOK"
-trap 'rm -rf "$BOOK"' EXIT
+export FOLIO_TEST_BOOK2="$BOOK2"
+trap 'rm -rf "$BOOK" "$BOOK2"' EXIT
 xvfb-run -a electron .
diff --git a/tests/selftest-scenario.js b/tests/selftest-scenario.js
index 269220a..5f530ab 100644
--- a/tests/selftest-scenario.js
+++ b/tests/selftest-scenario.js
@@ -2,6 +2,7 @@
    Injected only when FOLIO_SELF_TEST=1. Exercises the full
    renderer -> preload -> IPC -> chapters chain. */
 const BOOK_DIR = __BOOKDIR_VALUE__;
+const BOOK2_DIR = __BOOKDIR2_VALUE__;
 (async () => {
   const out = {};
   try {
@@ -212,6 +213,62 @@ const BOOK_DIR = __BOOKDIR_VALUE__;
         (await window.folio.getChapterContent(typedId)).includes("**Hello**");
     }
 
+    // --- full book view (fresh second book with known chapter contents) ---
+    await window.folio.openBookPath(BOOK2_DIR);
+    await new Promise((r) => setTimeout(r, 400));
+    const fb = window.__folioFullBookEditor;
+    const alphaId = (await window.folio.createChapter("Alpha")).id;
+    const betaId = (await window.folio.createChapter("Beta")).id;
+    const gammaId = (await window.folio.createChapter("Gamma")).id;
+    await new Promise((r) => setTimeout(r, 300));
+    await window.folio.saveChapter(alphaId, "# Alpha\n\nAlpha body text");
+    await window.folio.saveChapter(betaId, "Beta body without heading");
+    await window.folio.saveChapter(gammaId, "# Gamma's Own Title\n\nGamma text");
+    await new Promise((r) => setTimeout(r, 300));
+
+    document.getElementById("fullBookBtn").click();
+    await new Promise((r) => setTimeout(r, 300));
+
+    const expectedAssembled =
+      "# Alpha\n\nAlpha body text\n\n# Beta\n\nBeta body without heading\n\n# Gamma\n\n# Gamma's Own Title\n\nGamma text";
+    out.fullBookShown =
+      !document.getElementById("fullBookView").classList.contains("hidden") &&
+      document.getElementById("chapterView").classList.contains("hidden") &&
+      document.getElementById("fullBookBtn").classList.contains("active") &&
+      !document.getElementById("fullBookNav").classList.contains("hidden");
+    const assembled = fb.state.doc.toString();
+    out.assembled = assembled;
+    out.assembledOk = assembled === expectedAssembled;
+    const words = expectedAssembled.trim().split(/\s+/).length;
+    const statsEl = document.getElementById("fullBookStats");
+    out.fullBookStatsText = statsEl.textContent;
+    out.fullBookStatsOk =
+      statsEl.textContent === `words: ${words} · chars: ${expectedAssembled.length}`;
+
+    document.getElementById("copyAllBtn").click();
+    await new Promise((r) => setTimeout(r, 200));
+    const clip = await window.folio.getClipboardText();
+    out.clipboardLen = clip.length;
+    out.copyAllOk = clip === expectedAssembled;
+    out.copyStatusShown = document.getElementById("fullBookStatus").textContent === "Full book copied";
+
+    // Ctrl+A (routed through the renderer listener) selects the whole read-only doc
+    fb.focus();
+    fb.contentDOM.dispatchEvent(
+      new KeyboardEvent("keydown", { key: "a", ctrlKey: true, bubbles: true, cancelable: true })
+    );
+    const sel = fb.state.selection.main;
+    out.fullBookSelectAllOk =
+      fb.state.doc.length > 0 && sel.from === 0 && sel.to === fb.state.doc.length;
+
+    // back to normal chapter editing still works
+    document.querySelector("#chapterList .chapter-row").click();
+    await new Promise((r) => setTimeout(r, 250));
+    out.backToChapterOk =
+      document.getElementById("fullBookView").classList.contains("hidden") &&
+      !document.getElementById("chapterView").classList.contains("hidden") &&
+      !document.getElementById("fullBookBtn").classList.contains("active");
+
     const okFlags = [
       "dndMoved",
       "kbMoved",
@@ -233,6 +290,13 @@ const BOOK_DIR = __BOOKDIR_VALUE__;
       "tableOk",
       "painterOk",
       "formattingAutosaved",
+      "fullBookShown",
+      "assembledOk",
+      "fullBookStatsOk",
+      "copyAllOk",
+      "copyStatusShown",
+      "fullBookSelectAllOk",
+      "backToChapterOk",
     ];
     out.all = okFlags.every((f) => out[f] === true);
   } catch (e) {