Hi, I have a view which is created with details which depend on which button a user clicks. So, say the user clicks a button named 'Tom', I would like the navbar title to be Details of Tom... I've tried this: Code: detailView.title = @"Details of %@", whichButton.titleLabel.text; Where whichButton is the button that the user clicked on. Unfortunately, all this shows me is 'Details of %@' in the navbar title. Any ideas?