Some of the benefits of using two monitors are increased productivity, being able to use multiple programs at the same time and keeping up with email or Twitter on one screen. Two monitors are easy to set up.
For professional use, two monitors allow the user to work more effectively. The added screen space may increase productivity by up to 42 percent. Moreover, it can reduce errors by up to 20 percent. It is easier to work with multiple applications at the same time with a two-monitor setup. This is especially beneficial for designers who often have multiple design applications working together.
Alternatively, a two-monitor setup allows the user to dedicate one of the monitors to emails or Twitter. This provides increased connectivity with minimal impact on productivity.