This volume includes a set of chapters based on presentations given during a conference that presented findings about self-report. As the chapters in this volume document, psychological and social processes influence storage and recall of self-report information. They show that there are conditions under which self-reports should be readily accepted by the clinicians or researcher, and that there are other conditions where healthy scepticism is required. Methods for improving the accuracy of self-reports are demonstrated, ranging from fine-tuning interviews and questionnaires to employing emerging technologies to collect data in ways that minimize bias and encourage accurate reporting. Representing a diverse group of professions including sociology, law, psychology and medicine, the contributing authors are some of the finest scientists working on self-report in the world and their contributions to the field have been enormous. They set out to achieve three goals: to increase general awareness of the importance of self-report in science and in practice; to disseminate information about innovative ways of improving reports; and to stimulate research about self-report.