These vintage cookbooks are great for cooking enthusiasts. To use them, simply flip through the pages to find recipes that interest you. Note that since the books are old, handle them gently to avoid damaging the pages or bindings. When you're done cooking, wipe off any spills or stains on the pages right away using a soft, dry cloth. Store the cookbooks in a cool, dry place to prevent further yellowing or damage. Enjoy exploring the classic recipes in these cookbooks!