Paperback, perfect binding, 163 pages, illustrated, large readable type, with ecclesiastical approval.  The first of three volumes by the Eucharistic Apostles of the Divine Mercy to assist in the formation of the prayer groups  known as Cenacles that are devoted to learning and practicing the message and devotion of the Divine Mercy as revealed to St Faustina Kowalska and recorded in her Diary.  The first section of the book explains the major themes of the devotion and the texts of the prayers are provided, then there are 50 weekly plans for conducting a weekly prayer meeting with the group.