The Manual Mode Photo Class on a Card and Day & Night Exposure Guide is two photo cheat sheets in one. The “Photo Class” side shows you how to set up your camera and then guides you through ISO, aperture, shutter speed and focusing in manual mode and what to do if your photo doesn't look the way you would like. The Day & Night Exposure Guide side shows you how your image exposure changes when you change your settings (shutter speed, aperture or ISO) in manual mode. It also gives you guidance on where you can set your ISO, aperture and shutter speed depending on whether you are in a brighter or lower lighting. In a darker environment, you can look to the right side under the moon and you will see which direction to move your settings in lower light and vice versa in brighter environments on the left side under the sun. You can also see, at a glance, how your shutter speed, aperture and ISO affect your final image aesthetically. In other words, you can see which setting will help you achieve background blur, freeze motion and control image noise.