From videoconferencing to VR, the modern world is fraught with frustrations due to the design of technology. But these frustrations can be reduced or eliminated by "knowing the task" to be performed with the technology and "knowing the user" of the technology. This is the basis of human-centered design. Using the three Vs, videoconferencing, virtual reality, and video games, as examples, the reader is introduced to tools like task analysis. All of the lessons of the previous chapters apply to these three V systems, cementing the idea that understanding the human mind is the first critical piece of any evaluation or design.