Why is usability testing important to you and your organization? For one, it empowers anybody in web or app development to find out just what their users need, and increases ROI by focusing design improvements on areas that have the biggest impact. In this short summary course, interaction design specialist Chris Nodder explains the what, why, who, and how of usability testing, and shows how to turn the benefits of usability testing into a convincing argument for performing it at your company.