I recently travelled to Cologne, flying to Dusseldorf and catching the train from there to Cologne. Prior to travelling, I used the DB web-site to look up the times of trains from Dusseldorf Airport station to Cologne South station, which was convenient for my hotel. When I got to Dusseldorf Airport station, I found my train on the departures sheet, but in the list of stations at which the train would be calling, there was no mention of Cologne South. Likewise when the train arrived, the departure screen made no mention of Cologne South. I decided to get on the train, and change at the main Cologne Dom station. There was a list of stations that the train would be calling at on a screen at the far-end of the carriage, but before I could read it, it changed to show a pretty picture of a loco, and remained showing that for the rest of the journey - very helpful! The train called at a number of other stations before Cologne that hadn't been on either the poster or the departure screen, so I decided to chance it and stayed on after Cologne Dom, and fortunately the train duly stopped at the South station. How on earth do DB expect people to know where their trains are calling if neither the departure sheets nor departure screens show all the stations? OK, you could say that if you travel on the London Underground, the departure boards only show the train's final destination. But then they have plenty of line diagrams and maps all over the stations and trains to show where the train calls on the way. I could find nothing like that at Dusselforf Flughafen Station, or on the train.