This unique textbook enables social work practitioners to gain a deeper understanding of how Islamic principles inform and influence the lives of Muslim populations. Designed to support work with families and faith communities, this completely revised and updated edition examines religious precepts, cosmologies, philosophies and daily practices, while acknowledging cultural variants and population heterogeneity. It includes a comprehensive update of the research literature, international case studies, and new sections on religious extremism and ageing and end-of-life. This is the only book specifically on social work with Muslim communities and provides an essential toolkit for culturally sensitive social work practice.