AN AUTHORITATIVE AND UPDATED OVERVIEW OF THE EXPANDING FIELD The Wiley-Blackwell Handbook of Transpersonal Psychology presents a thoroughly revised and expanded synthesis of a field dedicated to understanding the full range of human consciousness and transformative experience. Reflecting a decade of significant scholarly development, contributions by leading scholars incorporate substantial updates across theory, research, and applied practice, including 18 chapters that are either entirely new or newly authored. This new edition provides a more rigorous and inclusive foundation for contemporary transpersonal psychology, placing increased emphasis on empirical inquiry, enhanced critique of metaphysical models, and broader cultural representation. New material examines emerging multicultural areas such as Integral Yoga, post-conventional development across traditions, and the expanding evidence base for psychedelic-assisted therapies. Substantially revised chapters address advances in altered states research, psychedelic-assisted psychotherapy, transcendent experiences, and somatic and expressive therapies. The Wiley-Blackwell Handbook of Transpersonal Psychology, Second Edition, remains ideally suited for undergraduate and postgraduate teaching in transpersonal psychology, consciousness studies, integrative mental health, and human development. It is also a comprehensive reference for researchers, clinicians, educators, and organisational practitioners seeking a current and wide-ranging overview of the field.