A new volume for the Experts In Assessment series focusing on assessing students' abilities as self-directed learners. Self-directed learners are defined as self-managing, self-monitoring, and self-modifying. These three dispositions need to be assessed to determine if they are being internalized and habituated over time. Arthur L Costa and Bena Kallick use "triangulation" to ensure that the assessment system is balanced and complete. Assessment "triangulation" consists of knowledge, performance, and demonstration. This book promises to gain a lot of interest and attention merely by the fact that it is authored by the Habits of Mind experts.