diff --git a/src/main.py b/src/main.py
index 863e8e3..9a18d2e 100644
--- a/src/main.py
+++ b/src/main.py
@@ -30,11 +30,20 @@ def main() -> None:
         frm = ttk.Frame(root, padding=10)
         frm.grid()
 
+        columns = ("title", "page")
+        toc_tree = ttk.Treeview(frm, columns=columns, show="headings")
+        toc_tree.heading("title", text="Title")
+        toc_tree.heading("page", text="Page")
+        toc_tree.grid(column=0, row=1)
+
+        for lvl, t, p in toc:
+            toc_tree.insert("", tkinter.END, values=("  " * lvl + t, str(p)))
+
         page_title = ttk.Label(frm)
-        page_title.grid(column=1, row=0)
+        page_title.grid(column=2, row=0)
 
         page_view = ttk.Label(frm)
-        page_view.grid(column=1, row=1)
+        page_view.grid(column=2, row=1)
 
         def load_page(page_num: int):
             page = doc[page_num]
@@ -58,8 +67,8 @@ def main() -> None:
             CURRENT_PAGE -= 1
             load_page(CURRENT_PAGE)
 
-        ttk.Button(frm, text="Previous", command=previous_page).grid(column=0, row=1)
-        ttk.Button(frm, text="Next", command=next_page).grid(column=2, row=1)
+        ttk.Button(frm, text="Previous", command=previous_page).grid(column=1, row=1)
+        ttk.Button(frm, text="Next", command=next_page).grid(column=3, row=1)
 
         load_page(CURRENT_PAGE)