"The book is not only educative and scientifically well underpinned but also comprehensible and highly entertaining, making it an attractive read and opening the issues up to a broad readership" - Bert Gordijn, Institute of Ethics, Dublin City University. "I would expect this book to make a significant contribution to the discussions of enhancement at the postgraduate level and to the academic community involved in this debate ... I do not know of any other text that covers this range of topics with such an approachable and clear style." - Professor Ruth Chadwick, Distinguished Research Professor, CESAGEN, University of Cardiff.