Bringing together the voices of a range of practicing librarians, this collection illuminates theories and methods of critical pedagogy and library instruction. Chapters address critical approaches to standards and assessment practices, links between queer, anti-racist and feminist pedagogies and the library classroom, intersections of critical theories of power and knowledge and the library, and the promise and peril of reflective instruction practices. Rooted in theoretical work both from within the profession (James Elmborg, Cushla Kapitzke) and without (Paolo Freire, Henry Giroux, Deborah Britzman), contributions are complemented by stories of critical approaches put into practice in institutional settings ranging from the community college classroom to large urban research universities to virtual worlds. The intention is to begin a conversation among librarians who teach, library instruction program coordinators, faculty and instructors interested in bringing librarians into the classroom, and librarians interested in developing liberatory and anti-oppressive professional practices.