Book excerpt: What is the nature and function of the Pentecostal/Charismatic gift of speaking in tongues? Charismatic Glossolalia aims to answer this question. Drawing on detailed observations and interviews with people who themselves speak in tongues, as well as survey data, Cartledge presents explanations on the meaning of this gift for both the participants and their churches. Cartledge argues that an understanding of the gift of speaking in tongues emerges as a symbol of divine-human encounter, especially associated with the context of prayer and worship and symbolising a sense of beauty, awe, power, intimacy and faith-building. In theological terms, speaking in tongues may be described as trinitarian, sacramental and as demonstrating an important feature of the Kingdom of God. An extensive literature review considers material from the New Testament, Pentecostal and Charismatic theology, and the behavioural and social sciences. This book offers a unique contribution to Pentecostal and Charismatic scholarship, as well as the emerging scholarly tradition of Practical Theology.