When a slide contains multiple objects, the objects appear on the slide in a stacking order. Stacking is the placement of objects one on top of another. The drawing order determines the object stacking order. The first object that you draw is on the bottom, and the last object that you draw is on top. You can change the order of this stack of objects by using Bring to Front, Send to Back, Bring Forward, and Send Backward commands on the Draw menu on the Drawing toolbar.
Arrange a Stack of Objects