Identity Matters explores the question that consistently plagues composition teachers: why do their pedagogies so often fail? Donna LeCourt suggests that the answer may lie with the very identities, values, and modes of expression higher education cultivates. In a book that does precisely what it theorizes, LeCourt analyzes student-written literacy autobiographies to examine how students interact with and challenge cultural theories of identity. This analysis demonstrates that writing instruction does, indeed, matter and has a significant influence on how students imagine their potential in both academic and cultural realms. LeCourt paints not only a compelling and vexing picture of how students interact with academic discourse as both mind and body, but also offers hope for a reconceived pedagogy of social-material writing practice.