Key Philosophical Texts in the Western Canon, recommended by Nigel Warburton

Even if you’ve never studied philosophy, it’s nice to be able to read a few books and get a sense of what it’s all about. Here, we asked our philosophy editor, Nigel Warburton, to talk us through five key works of Western philosophy—many of them in the public domain and available for free as ebooks—and explain why, despite one or two odd conclusions or quirky writing styles, they’ve played such an important role in expanding our understanding of the world.