The little robotic sparrow lying on its back twitching occasionally while stuck inside a window at the Tate Modern is a piece by the Danish…

What has authority to help us to know truly? This book explores questions of how we can really know what reality is like.

What is agnosticism and is it a sensible approach to take to issues of truth and, in particular, to the claims of Christianity?

This short book explores whether we can be confident in the truth in our post-truth age.

How do you respond when someone says 'Being a Christian is good for you, but I don't need that'? A look at the ramifications our…