diff --git a/apps/readest-app/src/__tests__/components/BookDetailView.test.tsx b/apps/readest-app/src/__tests__/components/BookDetailView.test.tsx
index da19e583..cedce91e 100644
--- a/apps/readest-app/src/__tests__/components/BookDetailView.test.tsx
+++ b/apps/readest-app/src/__tests__/components/BookDetailView.test.tsx
@@ -13,7 +13,9 @@ vi.mock('@/store/settingsStore', () => ({
   useSettingsStore: () => ({
     settings: {
       metadataSeriesCollapsed: true,
-      metadataOthersCollapsed: true,
+      // The "File Path" entry lives under the Metadata section; tests below
+      // depend on it being expanded by default so the row is in the DOM.
+      metadataOthersCollapsed: false,
       metadataDescriptionCollapsed: true,
     },
   }),
@@ -100,3 +102,24 @@ describe('BookDetailView delete dropdown layout', () => {
     expect(menu!.className).toContain('!relative');
   });
 });
+
+describe('BookDetailView file path row', () => {
+  // book.filePath is only set for in-place imports (and OS-handed paths like
+  // Android "Open with Readest"). Hash-copy imports leave it undefined, so
+  // surfacing it lets users tell the two storage modes apart at a glance.
+  it('shows the actual file path when book.filePath is set', () => {
+    const filePath = '/Users/me/Library/Books/sample.epub';
+    const { getByText } = renderView({ book: makeBook({ filePath }) });
+
+    expect(getByText('File Path')).toBeTruthy();
+    const value = getByText(filePath);
+    expect(value).toBeTruthy();
+    // Long paths must remain hoverable for the full string.
+    expect(value.getAttribute('title')).toBe(filePath);
+  });
+
+  it('omits the file path row for hash-copy books (no filePath)', () => {
+    const { queryByText } = renderView({ book: makeBook() });
+    expect(queryByText('File Path')).toBeNull();
+  });
+});
diff --git a/apps/readest-app/src/components/metadata/BookDetailView.tsx b/apps/readest-app/src/components/metadata/BookDetailView.tsx
index e26c9cab..87062dae 100644
--- a/apps/readest-app/src/components/metadata/BookDetailView.tsx
+++ b/apps/readest-app/src/components/metadata/BookDetailView.tsx
@@ -222,6 +222,21 @@ const BookDetailView: React.FC<BookDetailViewProps> = ({
                     {metadata?.identifier || _('Unknown')}
                   </p>
                 </div>
+                {/*
+                  Only books imported in-place (or files opened directly via the
+                  OS, e.g. Android "Open with Readest") keep a `filePath`; books
+                  copied into Books/<hash>/ have it left undefined. Surfacing the
+                  path lets the user verify which on-disk file the entry points at
+                  and tell apart in-place vs hash-copy imports at a glance.
+                */}
+                {book.filePath && (
+                  <div className='col-span-2 overflow-hidden sm:col-span-3'>
+                    <span className='font-bold'>{_('File Path')}</span>
+                    <p className='text-neutral-content text-sm break-all' title={book.filePath}>
+                      {book.filePath}
+                    </p>
+                  </div>
+                )}
               </div>
             </div>
           )}