This book is based on the 2019 Second Edition printed copy. The target audience of this book is primarily undergraduate students in psychology, education, social work, psychiatry, and related disciplines. However, the nature and extent of Adult Development and Ageing also makes the text suitable for use at postgraduate level (especially where this field was not a focus area in the undergraduate course). Furthermore, the book contains valuable information that will be useful to anyone who has an interest in adult development.