Professional Development Schools and Social Justice makes a significant contribution to answering the frequently asked question, ‘What does it mean to be a Professional Development School?’ The authors, an impressive collection of P-12 and college/university educators engaged in PDS collaborations, argue that because of their collaborative and inclusive approach, PDSs hold great potential for creating a more just and equitable educational system. The strength of the work lies in descriptions of concrete examples that already exist toward this end and in the passion the authors bring to the national dialogue about the politically contested purposes of education.