diff --git a/docs/components/canvas.md b/docs/components/canvas.md
index 6fdce076..e36da24f 100644
--- a/docs/components/canvas.md
+++ b/docs/components/canvas.md
@@ -43,6 +43,7 @@ Selection controls:
 | Operation | How |
 |-----------|-----|
 | Focus (enter) a card | Single-click its body |
+| Navigate between cards | `⌘⌃↑` / `⌘⌃↓` / `⌘⌃←` / `⌘⌃→` — jump to the nearest card in that direction (spatial, based on card positions) |
 | Move a card | Drag its title bar |
 | Resize a card | Drag its edges/corners |
 | Expand / restore a card | `⌘⌥E`, double-click the title bar, or the title-bar expand button — fills the viewport with that card; click the dimmed background or `⌘⌥E` again to restore |
@@ -115,6 +116,15 @@ performance.
 - `windowTintMode` / repository colors — card and nav tinting.
 - `showRunButtonInToolbar` — whether the Run button appears in the Canvas toolbar.
 
+## Keyboard card navigation
+
+`⌘⌃↑` / `⌘⌃↓` / `⌘⌃←` / `⌘⌃→` move focus to the **nearest card** in
+that direction, based on the 2D card positions on the board. If the target card
+is partially off-screen, the canvas pans smoothly to reveal it without changing
+the zoom level. These are the same key combos used for worktree/book navigation
+in Normal and Shelf views — in Canvas they switch to spatial navigation
+automatically.
+
 ## When to recommend Canvas vs Shelf
 
 - **Canvas** = spatial, see-everything, broadcast to many. Best when you're
diff --git a/supacode/Features/Canvas/Views/CanvasHelpButton.swift b/supacode/Features/Canvas/Views/CanvasHelpButton.swift
index b3269e29..829d44bd 100644
--- a/supacode/Features/Canvas/Views/CanvasHelpButton.swift
+++ b/supacode/Features/Canvas/Views/CanvasHelpButton.swift
@@ -49,6 +49,16 @@ struct CanvasHelpButton: View {
       for: AppShortcuts.CommandID.expandCanvasCard,
       in: resolvedKeybindings
     )
+    let navUpDown = [
+      AppShortcuts.display(for: AppShortcuts.CommandID.selectPreviousWorktree, in: resolvedKeybindings),
+      AppShortcuts.display(for: AppShortcuts.CommandID.selectNextWorktree, in: resolvedKeybindings),
+    ].compactMap { $0 }
+    let navLeftRight = [
+      AppShortcuts.display(for: AppShortcuts.CommandID.selectPreviousShelfBook, in: resolvedKeybindings),
+      AppShortcuts.display(for: AppShortcuts.CommandID.selectNextShelfBook, in: resolvedKeybindings),
+    ].compactMap { $0 }
+    let navKeys = (navUpDown + navLeftRight).joined(separator: " / ")
+
     return VStack(alignment: .leading, spacing: 14) {
       Text("Canvas Navigation")
         .font(.headline)
@@ -70,6 +80,13 @@ struct CanvasHelpButton: View {
           detail: expandShortcut.map { "\($0), or the card's title-bar button" }
             ?? "Use the card's title-bar button"
         )
+        if !navKeys.isEmpty {
+          canvasHelpRow(
+            icon: "arrow.up.arrow.down.arrow.left.arrow.right",
+            title: "Navigate between cards",
+            detail: "\(navKeys) — jump to the nearest card in that direction"
+          )
+        }
       }
     }
     .padding()