Continuing where Thus Spoke Zarathustra left off, Nietzsche's controversial work Beyond Good and Evil is one of the most influential philosophical texts of the 19th century and one of the most controversial works of ideology ever written. Attacking the notion of morality as nothing more than institutionalised weakness, Nietzsche criticises past philosophers for their unquestioning acceptance of moral precepts. Nietzsche tried to formulate what he called "the philosophy of the future".

The Gay Science (The Joyful Wisdom) is one of Nietzsche's greatest books. His wonderfully fertile mind roams over mankind, his thoughts, his emotions, his behaviour and his weaknesses with remarkable clarity, with insight - but also with humour!In this work are 383 separate paragraphs, some short, some long, but all singular observations - the epitome of his famous aphoristic style. 'Morality is the herd instinct in the individual.'

Nietzsche never recovered from his mental breakdown in 1889 and therefore was unable to further any plans he had for the ‘magnum opus’ he had once intended, bringing together in a coherent whole his mature philosophy. It was left to his close friend Heinrich Köselitz and his sister Elizabeth Förster-Nietzsche to go through the remaining notebooks and unpublished writings, choosing sections of particular interest to produce The Will to Power, giving it the subtitle An Attempted Transvaluation of All Values.

In On the Genealogy of Morals, subtitled "A Polemic", Nietzsche furthers his pursuit of a clarity that is less tainted by imposed prejudices. He looks at the way attitudes towards 'morality' evolved and the way congenital ideas of morality were heavily colored by the Judaic and Christian traditions.

Immanuel Kant’s Critique of Pure Reason can lay claim to being the most important single work of modern philosophy, a work whose methodology, if not necessarily always its conclusions, has had a profound influence on almost all subsequent philosophical discourse. In this work Kant addresses, in a groundbreaking elucidation of the nature of reason, the age-old question of philosophy: “How do we know what we know?” and the limits of what it is that we can know with certainty.

In this fascinating document, one of Japan's best known - and controversial - writers created what might be termed a new literary form. It is new because it combines elements of many existing types of writing, yet in the end, fits into none of them. The road Mishima took to salvation is a highly personal one. Yet here, ultimately, one detects the unmistakable tones of a self transcending the particular and attaining to a poetic vision of the universal.

The Red Book, published to wide acclaim in 2009, contains the nucleus of C. G. Jung's later works. It was here that he developed his principal theories of the archetypes, the collective unconscious, and the process of individuation that would transform psychotherapy from treatment of the sick into a means for the higher development of the personality.

It was with Human, All Too Human, first published in 1878, that Nietzsche developed the aphoristic style that so suited his challenging views and uncompromising style. The text is divided into three main sections: 'Of the First and Last Things', 'History of the Moral Feelings' and 'The Religious Life'.

Beyond Good and Evil confirmed Nietzsche's position as the towering European philosopher of his age. The work dramatically rejects traditional Western thought with its notions of truth and God, good and evil. Nietzsche seeks to demonstrate that the Christian world is steeped in a false piety and infected with a 'slave morality'. With wit and energy, he turns from this critique to a philosophy that celebrates the present and demands that the individual impose their own 'will to power' upon the world.  

The murder of brutal landowner Fyodor Karamazov changes the lives of his sons irrevocably: Mitya, the sensualist, whose bitter rivalry with his father immediately places him under suspicion for parricide; Ivan, the intellectual, driven to breakdown; the spiritual Alyosha, who tries to heal the family's rifts; and the shadowy figure of their bastard half-brother, Smerdyakov. Dostoyevsky's dark masterwork evokes a world where the lines between innocence and corruption, good and evil, blur and everyone's faith in humanity is tested.

Schopenhauer was just 30 when his magnum opus, Die Welt als Wille und Vorstellung, a work of considerable learning and innovation of thought, first appeared in 1818.

Much to his chagrin and puzzlement (so convinced was he of its merits), it didn't have an immediate effect on European philosophy, views and culture. It was only decades later that it was recognised as one of the major intellectual landmarks of the 19th century.

Philosophical Investigations was published in 1953, two years after the death of its author. In the preface written in Cambridge in 1945 where he was professor of philosophy he states: ‘Four years ago I had occasion to re-read my first book (the Tractatus Logico-Philosophicus) and to explain its ideas to someone. It suddenly seemed to me that I should publish those old thoughts and the new ones together: that the latter could be seen in the right light only by contrast with and against the background of my old way of thinking.’

In an attempt to appeal to the Medici family during the Italian Renaissance, Machiavelli outlines the way to acquire and retain political power, and how great men should behave in a princely government. The book is divided into four parts - types of principalities and state, proper conduct of a prince as military leader, personal conduct of a prince, and the disparity of Italy's political situation. Many listeners will be able to see principals that Machiavelli advocates for are still used in many political systems today.

Some of the cruelest deeds of Japan's war in Asia did not occur on the battlefield, but in quiet, antiseptic medical wards in obscure parts of China. Far from front lines and prying eyes, Japanese doctors and their assistants subjected human guinea pigs to gruesome medical experiments in the name of science and Japan's wartime chemical and biological warfare research. Author Hal Gold draws upon a wealth of sources to construct a portrait of the Imperial Japanese Army's most notorious medical unit, giving an overview of its history and detailing its most shocking activities.

A century after it first appeared, Crime and Punishment remains one of the most gripping psychological thrillers. A poverty-stricken young man, seeing his family making sacrifices for him, is faced with an opportunity to solve his financial problems with one simple but horrifying act: the murder of a pawnbroker. She is, he feels, just a parasite on society. But does the end justify the means? Rodion Romanovitch Raskolnikov makes his decision and then has to live with it.