Book excerpt: 'Public theology' involves the application of biblical and theological principles outside the confines of the church and assesses their implications for wider society. It examines both the theoretical structures of society (the nature of secularity, government, globalisation, pluralism and so forth) and the myriad specific issues involved in daily life (everything from sport to work-place relations to economics). Public theology is also, very importantly, a discipline that is practiced by the 'ordinary' Christian as well as the academic, and it is done in public (with all the scrutiny that entails) and in such a way that it communicates to non-Christians (although it remains a theological endeavour). In a real sense it is theology for the world, from the Word, by the people of God. The volume has a variety of contributors and includes an article on the role of public theology in Islam.