As a nun, mystic, prophet, and finally a saint, Saint Faustina Kowalska lived an extraordinary life. From poor a humble Polish nun to a Christian role model, she has inspired millions. During her beatification in 1993, Pope John Paul II even declared that she was one of the greatest apostles of the Twentieth Century. Jesus used her as a voice, sending her revelations that she began to record. Though she was completely uneducated, Sister Faustina compiled notebooks with these messages that are known today as the Diary of Saint Maria Faustina Kowalska. This diary contained God's loving message of Divine Mercy. This moving and inspirational book has become increasingly popular among Catholics today. This authorized biography (formerly titled "Mercy My Mission"), includes many excerpts from Faustina's famous diary. Whether read alone or as a study aid to reading the diary itself, this book is an inspiring and reliable introduction to this remarkable saint. The words of Sister Faustina and the Lord Jesus Christ are quoted extensively throughout this account. There is little feedback from the author because their words are powerful enough without interruption. It is meant to help those who want to pursue a more detailed study of Sister Faustina's work. This easy-to-follow biography is meant to touch the hearts and lives of those who've read it and inspire them to promote the actions and words of this exceptional woman.