'Works'' - are the essays by the famous Christian theologian and preacher Andrew of Crete (nearly 660-770). «works» - are the canons for the church public worships, created by Andrew of Crete. The central place among the works by the preacher is given to the Great Canon of Repentance, which is read in all the churches during the Lenten services. This canon consists of 250 troparions. It is read in parts on the first week of the Lent from Monday to Thursday, and in its full length - on the fifth week during the morning service on Friday. The reading of the canon takes seven hours, during which on every troparion one is supposed to make three prostrations.