Action builds are slide builds that allow you to move or change the appearance of an object without necessarily making it move on or off the slide. There are two general kinds of action:

• Moving an object across a slide along a path that you specify

  To learn about how to make objects change in size or transparency, or rotate, see Making Objects Fade, Rotate, Grow, or Shrink.

• Changing the appearance of an object by causing it to grow or shrink, change transparency, or rotate

  To learn about how to create a path to move an object across a slide, see Moving an Object Across a Slide.

You can create an action build on a master slide so that build effects appear on every slide created using that master. See Defining Default Transitions for instructions.

If you want to create the effect of flipping through a series of photos:  You might prefer to use one of the predefined animations described in Building a Series of Images on a Single Slide (Smart Builds)