A pretty nice quick reference. Please note that this is NOT a replacement for your user manual. It is only a quick refresher guide to give you a quick reminder on which buttons you need to push to get what you want. It is far from complete reference and those that take a star of for it missing stuff are kidding themselves. It does not claim to be a full reference guide. However, if you're not always using the camera and forget how to adjust certain settings this thing is perfect to keep in your bag. This product is not meant for the pro user, but rather targets the beginners and intermediates with easy to follow quick steps to change picture settings.