Book excerpt: 'Ordinary theology' is Jeff Astley's phrase for the theology and theologising of Christians who have received little or no theological education of a scholarly, academic or systematic kind. Astley argues that an in-depth study of ordinary theology, which should involve both empirical research and theological reflection, can help recover theology as a fundamental dimension of every Christian's vocation. Ordinary Theology analyses the problems and possibilities of research and reflection in this area. This book explores the philosophical, theological and educational dimensions of the concept of ordinary theology, its significance for the work of the theologian as well as for those engaged in the ministry of the church, and the criticisms that it faces. 'Ordinary theology' Astley writes, 'is the church's front line. Statistically speaking, it is the theology of God's church.'