In this open-access book, authors from a range of disciplines--from geosciences to drama--capture how failure manifests and can be productively supported in a range of undergraduate research experiences. Whether the learning environment is a STEM research lab, a course-based undergraduate research experience (CURE), a humanities summer undergraduate research experience, a library, or the stage, students can benefit from support when they experience a gap between an expected/desired result and their lived experience. These perspectives and disciplinary contexts address failure from different vantage points and lenses, with the common focal point of nurturing undergraduate success through leveraging failure as an opportunity to build confidence and resilience. Represented are different institutional types, classroom and non-classroom environments, and programmatic and individual efforts. [This book was edited with Jennifer M. Heemstra.]