Michael W. Eysenck is Emeritus Professor at the University of Roehampton and Emeritus Professor and Honorary Fellow at Royal Holloway University of London. He has published 62 books and approximately 170 articles and book chapters. He has written numerous textbooks on cognitive psychology and his main research area is concerned with the relationship between anxiety and cognition. David Groome was Senior Academic and Head of the Psychology Department at the University of Westminster, London. He retired in 2011, but he continues to write and he has authored or co-authored twelve psychology books. His research interests mainly involve cognition and memory, especially memory suppression and the effects of mood disorders on cognition. In 2009 he was awarded the BPS Award for Excellence in the Teaching of Psychology. His hobbies include tennis, travel, dogs, and music. In his spare time he is a keen guitarist, and is still waiting for his big break as a rock star.