The other day a friend asked me how she could add a trigger animation to a slide object – but with a difference! She inserted a picture on a slide (let’s call this Picture 1) and then placed another picture of the exact same size over the first one (let’s call this Picture 2). She then wanted to click Picture 2 to cause a trigger animation on Picture 1 – this caused Picture 1 to be revealed, almost like the example explained in our Trigger Animations in PowerPoint 2010 tutorial. However, what she wanted next was to click on Picture 1 to reveal Picture 2. So to put this in a few words, this is what she wanted: Click on Picture 2 to reveal Picture 1 (and hide Picture 2); and Click on Picture 1 to reveal Picture 2 (and hide Picture 1).