If you browse an E-commerce platform online, or visit an electronics retail store, the first thing you will notice are monitors with different sizes. The numbers 23-, 24-, 27-, 28-, and 29-inch seem to scream for your attention. But what do these numbers mean? Monitor size represents the dimensions of a monitor, and it is usually measured in inches. The size of a monitor is the diagonal length of its display area, and converts from centimeters to inches (1 in = 2.54 cm). Large wide-format monitors are the current trend in the market, (e.g., 27-inch monitors; 16:9). Other than offering a bigger screen real estate, large wide-format monitors delivers more details, which is especially important for photographers, who edit images on a regular basis. In addition, these monitors can accommodate more windows and tool bars at the same time when using editing software such as Photoshop, Lightroom, VEGAS, and iMovie and thus improve work efficiency.