TSIRONI, N. 2020. Book Review:B. BITTON-ASHKELONY - D. KRUEGER, Prayer and Worship in Eastern Christianities, 5th to 11th Centuries, Routledge 2017. Byzantina Symmeikta. 30, (Oct. 2020), 399–402. DOI:https://doi.org/10.12681/byzsym.24709.