The interpretation of images that are created according to electromagnetic energy reflected from or emitted by earth surface features or atmosphere is a common practice to obtain useful information from raw image data. Images acquired by a device that is not in contact with objects and features are generally referred to as remotely sensed data, and the photo interpretation is generally carried out to extract meaningful information from image data for any subsequent uses. Specifically, this chapter covers elements of image interpretation, photo interpretation key, scale of an aerial photograph, heights, distances, and areas of objects in a photo, and land use land cover classification and mapping.