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Become a PowerPoint Guru

By: David Tracy

Date Created: July 27th 2010
Last Updated: July 27th 2010

Become A PowerPoint Guru

This exclusive Indezine excerpt is from Become a PowerPoint Guru, a book that details how management and strategy consulting firms develop business presentations. The book is authored by David Tracy, who has worked as a management consultant for 12 years.

Here are couple of excerpts, reproduced here with permission from David Tracy.

Charts & Uses

In representing quantitative data, it is best to use charts. Not only are charts intuitive for your audience to quickly grasp, but they’re also a lot more pleasing to the eye then just a table of values.

However, it is equally as important to know what charts work best for what types of messaging. If you use a chart incorrectly, it may be misleading and lead your audience to draw inaccurate conclusions.

The table below breaks down the most common forms of charts mapped against different types of data comparison. Use this as a reference guide in selecting a chart for visual enhancement.

Now, let’s discuss each data comparison type (i.e. the columns) in more detail.

Composition Charts

There are 4 commonly used charts to depict composition:

  1. Stacked ColumnsStacked Columns – These are bar charts, where the segments/bars for each column add to the total height. The most important segment goes at the bottom of the column. You can add dashed lines between segments to emphasize comparison. State the absolute value at the top of each bar.

  2. Pie ChartPie Chart – Use a pie chart if you only have a single data series. Unless your purpose is to show fragmentation, use a maximum of 5-6 segments. Lump the smaller segments into a catch-all bucket, such as “Other.” Order your segments from largest to smallest, with the exception of ‘Other,’ which goes last. Start at 12 o’clock and go clockwise.

  3. Waterfall Chart Waterfall Chart – This is one of the most graphic ways to demonstrate the change from one position to another, to provide a breakdown of an aggregate number into its components, or to show a change in position. It is most frequently used as a descriptor of the causes of financial change. However, it can be just as effective as a conceptual representation of any change.

  4. Mondrian Graph Mondrian Graph – This is similar to the stacked columns, except it is stretched both vertically and horizontally to occupy the whole space in the chart. Its strength lies in the visual impact of the largest areas, which represent the most significant parts of the universe. Some great uses for a Mondrian include market maps, post-merger portfolio analysis, trend analysis, and substitution analysis.


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