Canon law does not require a miracle caused by activity of the God’s servant to proclaim him blessed. Evidence of a miracle is only required in the canonization process. However, graces obtained as a result of Father Popiełuszko’s acts testify to his holiness and martyrdom. Their descriptions are collected in the book of graces and miracles. Some of them have been confirmed by medical doctors. There are also such cases as eyesight recovery by Aniela B. from Rzeszów in 1989 or disappearance of cancer lesions from head of Professor Stefan Swieżawski in 1987. The book contains cases of hundreds of special graces prayed at the grave of Father Popiełuszko.