Muhammad Afzal Upal and Carole M. Cusack (eds) Handbook of Islamic Sects and Movements Brill Handbooks on Contemporary Religion, Volume: 21 Leiden and Boston: Brill, 2021. 794 + Xxi Pp. ISBN: 978-90-04-42525-5 (hardback). ISBN: 978-90-04-434454-4 (e-book). €275.00 (excl. VAT). RASCEE 2024, 16 (1), 113-115. https://doi.org/10.20413/.