Address (1,2) -- The past experience of Paul reviewed (1:2-11) -- Transition to the letter's first theme (1:12-14) -- Paul's self defense of his travel plans (1:15--2:13) -- The main theme: Paul's apostolic ministry (2:14--7:16) -- The collection (8:1--9:15) -- Fresh troubles in Corinth (10:1--13:10) -- Conclusion (13:11-13).