To use this notebook, simply open it up like a map just as you would unfold a real Marauders Map. You can use it to write down your daily notes, story ideas, or anything you like on the lined pages. When not in use, close it up and the magnetic closure will keep it shut. As for maintenance, keep it away from water to prevent the pages from getting damaged. You can wipe it gently with a dry cloth if it gets dirty. Also, avoid bending the hardcover too forcefully to keep its shape intact.
