The in Brief reference card answers most camera operation questions quickly and easily. The information is arranged logically for ease of use. The reference card is laminated with foldable hinges so it lies flat and is easily stored in your camera bag. The first panel contains a color-coded index to the rest of the panels. For instance, if you have a question about white balance, just check the index and find your answer on the purple panel. An overview of the information for each of the panels is listed below Gray: Annotated Line Drawing, Quick Button Reference Blue: Viewfinder, Information Display Lime: Focus, Release Modes, Live View, Video Red: Flash Photography, Picture Controls Yellow: Metering, Exposure, Bracketing, HDR Purple: ISO, White balance, Quality and Size Orange: Playback Images, Reset Controls, Wi-Fi Green: Custom Settings Once you have the in Brief reference card, you can leave your manual at home!