Given the burgeoning number of diverse students in our nation’s schools, coupled with the potentially negative outcomes and wasted resources associated with the misidentification of students for special education and excessive use of exclusionary discipline for specific subgroups of students, it is imperative that educational professionals understand and address the implications arising from disproportionality for children both with and without disabilities. This text contributes unique perspectives and up-to-date information, including advances and research that have emerged since the last of the extant books was published. Presented in three sections, the first considers disproportionality in special education identification, with chapters examining overrepresentation by ethnicity, gender, and language. The second section addresses disproportionality in discipline, specifically focusing on inequalities in school disciplinary actions and juvenile justice decisions based on ethnicity and gender. The final section provides readers with approaches for addressing disproportionality and creating more equitable learning environments now and in the future. The text encourages bidirectional and evolving relationships between the topics examined in each chapter with the historical framework presented. Because of the comprehensive nature of the topics covered in the book, it is an ideal “one-stop” reference for readers aiming to acquire a broad understanding of the key issues related to the topic. The book will appeal to a range of potential readers, including university students and practitioners in the fields of education, psychology, sociology, gender studies, ethnic studies, and criminal justice as well as lay-readers interested in issues of equality and/or education.