What is the difference between a horizontal and a vertical bar graph?

uh, the fact that one is oriented horizontally and the other vertically (one goes up and down and the other goes side to side)|||Pretty much like it sounds...a horizontal graph will have the data laid out in horizontal rows across your page. A vertical graph will have the data going in vertical columns on your page.|||The difference between the two graphs is that horizontal, the bars are laying flat and move from left to right, and the vertical, the bars read from bottom to top. Go the website below, you will see vertical graphs. If you turn them on their side, then it is a horizontal graph.