This book highlights some of the ways in which people differ from each other psychologically and is aimed primarily at students of ‘A’ level and first degree level psychology. The book is also suitable for students on GCSE, Access to Higher Education, BTEC, nursing, midwifery and teacher education courses. It examines definitions of intelligence, the measurement of intelligence and the controversial nature/nurture debate. Different theoretical approaches to the study of personality are expolored along with some ways in which personality can be assessed. The text is presented simply and concisely in the form of comprehensive notes. The key concepts are clearly highlighted through the use of bold type and subheadings; each chapter includes self-assessment questions and a list of recommended further reading. The clear, readable style is acceptable both to students following a course in psychology and to those such as parents, teachers and health professionals who look to psychology as a source of interestinng and useful insights to support them in their roles.