Comment by pmontra

Point 1, we're used to sideways text because of books on a shelf but here it's compounded by the text almost disappearing after the click. The only way to get it back is clicking multiple times in the empty space above the bar. The only hint to click there is in one of the steps in the text box on the left, which probably nobody reads. Something to click above the bar (an arrow up?) would probably remove the need for the help text. Other hints could remove the need for any help text and free the box to display the content of the clicked bar.