A point and figure chart has price on the Y-axis and time on the X-axis, but the time function is not regular because prices are only plotted on the chart when they represent significant movements.
To plot a point and figure chart, therefore, you first need to decide what is significant. In the example below, we have decided that a 5p change in either direction is significant.
Example

The idea behind point and figure is that by ignoring trivial price fluctuations, the overall trend is made much clearer. Only 'significant' price changes are shown.
The alternative to columns of crosses and zeros is to use chevrons pointing upwards for price increases and downwards for decreases. You will see these most often on charts printed from a computer since the resolution of many computer screens is not sufficient to distinguish between small crosses and zeros.
Example

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