In the 1960s a radical concept emerged from the great French thinker Jacques Derrida. Read the book that changed the way we think; read Writing and Difference, the classic introduction.

Perhaps the most important work of philosophy written in the twentieth century, Tractatus Logico-Philosophicus was the only philosophical work that Ludwig Wittgenstein published during his lifetime. Written in short, carefully numbered paragraphs of extreme brilliance, it captured the imagination of a generation of philosophers. For Wittgenstein, logic was something we use to conquer a reality which is in itself both elusive and unobtainable.

This is a book about the big questions in life: knowledge, consciousness, fate, God, truth, goodness, justice. It is for anyone who believes there are big questions out there, but does not know how to approach them. Think sets out to explain what they are and why they are important.

Simon Blackburn begins by putting forward a convincing case for the study of philosophy and goes on to give the reader a sense of how the great historical figures such as Descartes, Hume, Kant, and Wittgenstein ha...