Our psychology list focuses on the big thinkers behind psychology, psychoanalysis and psychotherapy. They were fearless explorers of the human mind, so we thought it only fair to examine their lives and worlds – to learn more about their minds – before looking at the extraordinary ways in which they defined and reframed the discussion of consciousness and human behaviour.

Trying to understand how the human mind works is never going to be an easy task, and studying the works of these great thinkers in their own words is often an uphill struggle. So our authors have taken it upon themselves to flesh out the inner and outer worlds of these psychological thinkers before examining their ideas in crystal-clear language.

Ideas don't exist in a vacuum. As with all our subjects in the Who the Hell is...? series, Psychology embraces the other topics and in turn takes part in a fascinating global conversation, made truly alive and accessible for the first time.