The Interpretation of Dreams by Sigmund Freud is one of the most significant books of the 20th century. Though dreams and their role in human consciousness have been a continuing thread in religion and art and life down the centuries, Freud's look at the subject through the prism of his emerging practice and study of psychoanalysis provided a startlingly new and challenging perspective.

One of Freud's central achievements was to demonstrate how unacceptable thoughts and feelings are repressed into the unconscious, from where they continue to exert a decisive influence over our lives. This volume contains a key statement about evidence for the unconscious and how it works, as well as major essays on all the fundamentals of mental functioning. Freud explores how we are torn between the pleasure principle and the reality principle, how we often find ways both to express and to deny what we most fear and why certain men need fetishes for their sexual satisfaction.

Here are three key works by Sigmund Freud which, published in the first decades of the 20th century, underpinned his developing views and had such a dramatic effect on world society. In the uncompromising Three Essays on the Theory of Sexuality (1905), he declared that 'sexual aberrations' are not limited to the insane but exist in 'normal' people to a greater or lesser degree. The three essays are divided between sexual perversions, childhood sexuality and puberty.

The title of this work does not refer to the biblical Antichrist but is a criticism of institutionalized religion and the priestly class. The book is an attack on what Nietzsche considered the "slave morality" and apathy of Western Christianity. Nietzsche argues that Christianity poisons western culture and perverts the words of and practice of Jesus. 

Anyone, as Freud tells us in "Reflections on War and Death", forced to react against his own impulses may be described as a hypocrite, whether he is conscious of it or not. One might even venture to assert - it is still Freud's argument - that our contemporary civilization favors this sort of hypocrisy and that there are more civilized hypocrites than truly cultured persons, and it is even a question whether a certain amount of hypocrisy is not indispensable to maintain civilization.

The Psychopathology of Everyday Life, which appeared first in 1901 and was then expanded in a series of subsequent editions, has proved to be one of Freud's most popular works, and one of his most influential during his lifetime. It was here that he proposed that many slips and errors of memory common to the average man in everyday life actually signals unconscious issues that beset the individual, and, if examined, can be extremely revealing.

In 1957, four years before his death, Carl Gustav Jung, psychiatrist and psychologist, began writing his life story. But what started as an exercise in autobiography soon morphed into an altogether more profound undertaking.

This classic introduction to the psychology of Carl Gustav Jung is important because it is the only English original text he sanctioned in his lifetime. In his personal foreword, he wrote: 'Mrs Frieda Fordham has undertaken the by no means easy task of producing a readable resumé of all my various attempts at a better and more comprehensive understanding of the human psyche. She has delivered a fair and simple account of the main aspects of my psychological work. I am indebted to her for this admirable piece of work.'

Sigmund Freud (1856-1939) is remembered as the father of psychoanalysis. Civilization and Its Discontents (1930) is one of his key works, written three decades after his seminal book The Interpretation of Dreams. In it he considers the conflict between the needs of the individual acting both egotistically and altruistically in the pursuit of happiness and the myriad demands of civilised society and the ensuing tensions this clash of needs and demands generates. 

In the 21st century, Carl Gustav Jung (1875-1961) remains one of the key figures in the field of analytical psychology - and Psychological Types, or The Psychology of Individuation, published in 1921, is one of his most influential works. It was written during the decade after the publication of Psychology of the Unconscious (1912), which effectively ended his friendship and collaboration with Sigmund Freud.

Sigmund Freud revolutionized the way in which we think about ourselves. From its beginnings as a theory of neurosis Freud developed psychoanalysis into a general psychology, which became widely accepted as the predominant mode of discussing personality and interpersonal relationships. Anthony Storr goes one step further and investigates the status of Freud's legacy today and the disputes that surround it.

First published in 1930, Civilization and Its Discontents is one of the most influential works of pioneering psychologist Sigmund Freud. Focusing on the tension between the primitive drives of the individual and the demands of civilization for order and conformity, Freud draws upon his psychoanalytic theories to explain the fundamental structures, conflicts, and consequences of society.

Published first in 1912, Psychology of the Unconscious was one of the most important stepping stones in the development of Jung’s thought and practice. It has a long subtitle: A Study of the Transformations and Symbolisms of the Libido. A Contribution to the History of the Evolution of Thought. This expressed the underlying impetus - a break from the view of the libido and its functions as taught by Sigmund Freud, which Jung had earlier adopted. It was from this point that the two approaches, which came to be known as the Swiss and Viennese schools, emerged.

This substantially revised fifth edition of a classic text includes an updated preface, new content on the therapeutic relationship, substantially revised chapters on the middle phase of counselling and reflections on the influence of other modalities and shared aspects of practice across approaches. Each chapter now includes an annotated further listening section to help deepen knowledge and reinforce learning of key aspects of the counselling process. 

Why do you lose arguments with people who know MUCH LESS than you? Why can you recognise that woman, from that thing...but can't remember her name? And why, after your last break-up, did you find yourself in the foetal position on the sofa for days, moving only to wipe the snot and tears haphazardly from your face? Here's why: the idiot brain. For something supposedly so brilliant and evolutionarily advanced, the human brain is pretty messy, fallible and disorganised.