diff --git a/stockcli/cli.py b/stockcli/cli.py
--- a/stockcli/cli.py
+++ b/stockcli/cli.py
@@ -1,13 +1,16 @@
 import json
 import logging
 import logging.config
+from datetime import timedelta
 from operator import itemgetter
 
 import click
 import requests
+import requests_cache
 from rich.panel import Panel
 from rich.table import Table
 
+from .books import add_book_by_barcode, update_isbn
 from .console import DEFAULT_PADDING, console, int_prompt, prompt
 from .stock import (
     add_by_barcode,
@@ -22,6 +25,7 @@ TASK_MAP = {
     "2": ("Add stock", add_by_barcode),
     "3": ("Update stock", update_by_barcode),
     "4": ("Get product info", get_info_by_barcode),
+    "5": ("Add book", add_book_by_barcode),
 }
 
 
@@ -48,6 +52,22 @@ def stockcli(ctx: click.Context, configf
             "GROCY-API-KEY": config["grocy"]["apikey"],
         }
     )
+    ctx.obj["cached_session"] = requests_cache.CachedSession(
+        "stockcli",
+        ignored_parameters=["GROCY-API-KEY"],
+        expire_after=timedelta(days=1),
+        cache_control=True,
+        allowable_methods=["GET", "POST"],
+        allowable_codes=[200, 400],
+        match_headers=True,
+        stale_if_error=True,
+    )
+    ctx.obj["cached_session"].headers.update(
+        {
+            "accept": "application/json",
+            "GROCY-API-KEY": config["grocy"]["apikey"],
+        }
+    )
     ctx.obj["base_url"] = f"{config['grocy']['url']}/api/"
 
     menu = Table.grid(padding=DEFAULT_PADDING)