With 20 cases, this is a thorough revision of the only ID casebook available. The thirty-six richly-detailed, authentic cases are all written by practicing instructional designers—and have been carefully chosen to provide enough depth to develop competence while maintaining a text length that is accessible within the timeframe of a standard course. By giving students opportunities to encounter many different challenges in a variety of settings (corporate, K-12, higher education) involving a range of issues and subjects, these cases effectively bridge the gulf between the complexities of the design world and the principles taught in ID courses.