The sources contained within this annotated bibliography can help inform state efforts to define the competencies that students need to be able to demonstrate, determine how schools and districts can ensure that students master these competencies, and measure school and student progress toward college and career readiness and success goals. This annotated bibliography seeks to provide a point of reference for achieving these objectives and catalogs resources designed to explain what lifelong learning skills are, how they impact and relate to college and career readiness and success outcomes, and how they can be taught and measured in the classroom across the pre-kindergarten to workforce (PK-20W) spectrum. It should be noted, however, that although many of these resources demonstrate a direct link to college and career readiness, most focus on academic achievement more broadly, and were conducted with learners at various stages of the PK-20W spectrum. The following is appended: Summary of Sources Used in This Report.