The Oxford Handbook of Preservice Music Teacher Education in the United States identifies the critical need for change in Pre-K-12 music education. Collectively, the handbook’s 56 contributors argue that music education benefits all students only if educators actively work to broaden diversity in the profession and consistently include diverse learning strategies, experiences, and perspectives in the classroom. In this handbook, contributors encourage music teachers, researchers, policy makers, and music teacher educators to take up that challenge. Throughout the handbook, contributors provide a look at ways music teacher educators prepare teachers to enter the music education profession and offer suggestions for ways in which new teachers can advocate for and adapt to changes in contemporary school settings. Building upon students’ available resources, contributors use research-based approaches to identify the ways in which educational methods and practices must transform in order to successfully challenge existing music education boundaries.