40 years since its original publication, Personality: Theory and Research, 11th edition, still maintains the overall goals of the original text, despite a complete update in content to keep with the changes that have occurred in the field. The text aims to present the major theoretical perspectives on personality through contemporary research and case studies while highlighting how theory and research inform one another. Rich in case material, the 11th edition upholds the texts long-standing tradition of presenting the subject matter objectively and without bias, encouraging readers to observe the evidence and come to their own conclusions.