To use this diary, simply open it up and start jotting down your weekly plans, appointments, or notes on the relevant pages. The elastic closure helps keep the diary closed, so don't forget to use it to protect your pages. The bookmark is great for quickly finding where you left off. When it comes to maintenance, keep it away from water to prevent damage to the pages. Also, try not to bend the hardcover too much to maintain its shape. That's all you need to know to enjoy your Harry Potter diary!