In very recent times humanity has learnt a vast amount about the universe, the past and itself. But through our remarkable successes in acquiring knowledge we have learned how much we have yet to learn: the science we have, for example, addresses just five per cent of the universe, pre-history is still being revealed, with thousands of historical sites yet to be explored, and the new neurosciences of mind and brain are just beginning.

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.’

Bertrand Russell's A History of Western Philosophy serves as the perfect introduction to its subject; it remains unchallenged as the greatest account of the history of Western thought. Charting philosophy's course from the pre-Socratics up to the early twentieth century, Russell relates each philosopher and school to their respective historical and cultural contexts, providing erudite commentary throughout his invaluable survey.

Already a classic, this landmark study of early Western thought now appears in a new edition with expanded coverage of the Middle Ages. Author Anthony Gottlieb looks afresh at the writings of the great thinkers, questions much of conventional wisdom, and explains his findings with unbridled brilliance and clarity. From the pre-Socratic philosophers through the celebrated days of Socrates, Plato, and Aristotle, up to Renaissance visionaries like Erasmus and Bacon, philosophy emerges here as a phenomenon unconfined by any one discipline. 

An essential introduction to the history, concepts, and thinking behind philosophy that demystifies what can often be daunting subject matter, laid out in DK's signature style. 

The father of modern philosophy, Descartes is still one of the most widely discussed philosophers today. Putting rationalism above all else, he sought to base all knowledge of the world on a single idea: "I think, therefore I am." This introduction expertly summarises his thoughts on the dualism of mind and body, his proofs for God’s existence, and his responses to scepticism. Explaining how his life informed his philosophy, Bracken demonstrates the philosopher’s enduring significance.

It's the issues and theories that are most intriguing and relevant to curious teen minds - questions like: what is knowledge, identity, human nature, right and wrong, faith, freedom, and justice? These are all addressed, offering big ideas, simply explained. Written and designed specifically for the teen market, Heads Up: Philosophy explains challenging but clear text to clarify and explain theories and arguments.

A clear and accessible guide to philosophy, How Philosophy Works combines bold infographics and jargon-free text to demystify fundamental concepts. Covering everything from ethics to epistemology and phenomenology, the book presents the ideas and theories of key philosophical traditions and philosophers - from Plato and Socrates to Nietzsche and Wittgenstein via Kant - in a novel, easy-to-understand way. 

What are the arguments for and against religion and religious belief - all of them - right across the range of reasons and motives that people have for being religious, and do they stand up to scrutiny? Can there be a clear, full statement of these arguments that once and for all will show what is at stake in this debate? Equally important: what is the alternative to religion as a view of the world and a foundation for morality?

The Enlightenment is one of the formative periods of Western history, yet more than 300 years after it began, it remains controversial. It is often seen as the fountainhead of modern values such as human rights, religious toleration, freedom of thought, scientific thought as an exemplary form of reasoning and rationality and evidence-based argument. Others accuse the Enlightenment of putting forward a scientific rationality which ignores the complexity and variety of human beings, propagates shallow atheism and aims to subjugate nature to so-called technical progress.

In a career spanning 60 years, Sir Karl Popper has made some of the most important contributions to the 20th century discussion of science and rationality. The Myth of the Framework is a collection of some of Popper's most important material on this subject.  

In How the World Thinks, Julian Baggini travels the globe to provide a hugely wide-ranging map of human thought. He shows us how distinct branches of philosophy flowered simultaneously in China, India and Ancient Greece, growing from local myths and stories - and how contemporary cultural attitudes, with particular attention to the West, East Asia, the Muslim World and Africa, have developed out of the philosophical histories of their regions. 

Perhaps one of the most revolutionary works of philosophy ever presented, The Phenomenology of Spirit is Hegel's 1807 work that is in numerous ways extraordinary. A myriad of topics are discussed, and explained in such a harmoniously complex way that the method has been termed Hegelian dialectic. Ultimately, the work as a whole is a remarkable study of the mind's growth from its direct awareness to scientific philosophy, proving to be a difficult yet highly influential and enduring work.

We have all pondered seemingly unanswerably but significant questions about our existence - the biggest of all being, "Why are we here?" Philosophy has developed over millennia to help us grapple with these essential intangibles. There is no better way to study the big questions in philosophy than to compare how the world's greatest minds have analyzed these questions, defined the terms, and then reasoned out potential solutions. Once you've compared the arguments, the final step is always deciding for yourself whether you find an explanation convincing.

 A History of Western Philosophy and Theology is the fruit of John Frame's 45 years of teaching philosophical subjects. No other survey of the history of Western thought offers the same invigorating blend of expositional clarity, critical insight, and biblical wisdom.