To use this bookmark, simply place the plastic flap over the top of the page where you want to mark your spot. When you're done reading, it'll stay right there to show you where you left off. As for care, try to keep it away from sharp objects to avoid scratching the crest. Also, don't expose it to extreme heat or moisture as it might damage the colors or the plastic. When not in use, you can keep it safely in its original box to protect it and keep it looking great.