Using the Icebergs
The iceberg can be used to convey many concepts. In the series example, it is used to illustrate a group of problems that need resolution. It can also be a metaphor for hazards (known and unknown), deception, hidden agendas, visible values, etc.
The are a little tricky to deal with so the PowerPoint download has water included. If you want to just use a line to signify the water level, simply remove the fields and add the line.
There are two icebergs for your use. They can be used together as metaphors for separate problems, etc., or the smaller can be what the large has melted into – icebergs change shape as they reduce in size.
Customizing the Icebergs
If you want to change the size/shape of the icebergs, be sure to group it and resize the entire group. To scale, hold the shift key down as you resize.
Unlike many other graphics, the icebergs are clearly identifiable only when a semirealistic coloring is applied. Otherwise, the iceberg could be misinterpreted as a rock if gray or clod of dirt if brown, etc. Find a blue that matches or complements your template.
You'll also have to apply a waterline for the iceberg to be identifiable. Be sure to place the water line toward the top of the iceberg so that it appears realistic. The major part of icebergs are always underwater. The downloads have fields that you can use and recolor if you want. One of the fields is behind the iceberg and one is in front and they are semitransparent. Using the two fields in this manner provide a fairly realistic looking ocean.
The options in PowerPoint 2007 are not really applicable to the iceberg except the enhanced gradient formatting. You may want to play around with different blue colors in the gradient at the different stops to add more dimension to the iceberg. Worth checking into if you use the iceberg graphic often and want to make it a staple in your cupboard of charts.
Don't use 3D with these frameworks.
Don't use shadows on this type of framework.
Gradients, patterns, and pictures
Don't use patterns or pictures. As explained above, gradients are nearly a must.
Icebergs shrink, shift, change shapes, and all sorts of things. Use whatever animation works well to simulate these events. In the downloadable animation scheme you'll see nearly all of them in play. You may not want to build a real slide like the downloadable animation scheme, but you'll get a pretty good idea of how fades, spins, shrinks work to tell your story.