Abnormal Psychology is an Open Education Resource written by Alexis Bridley, Ph.D. and Lee W. Daffin Jr., Ph.D. and Edited by Carrie Cuttler, Ph.D. through Washington State University. It tackles the difficult topic of psychological disorders in 8 chapters. After the first three foundational chapters, a discussion of psychological disorders ensues to include anxiety disorders, obsessive-compulsive and related disorders, mood disorders, schizophrenia spectrum and other psychotic disorders, and personality disorders.