This is an example of a standardized choropleth map. The above map classifies the Australian climate, each color represents a different type of climate. http://ahunsberger.blogspot.com/2007/10/examples-of-choropleth-maps_17.html

A Cartogram is a cartographic technique that alters a map to enlarge or reduce certain zones based on the data. These distortions help to further along the point that the color shades may not be good enough alone for. The above map is of the percentages of threatened and endangered amphibians in the world.
Histograms are graphs that display information as bars which is the frequency of the data. The histogram above is the life expectancy of a person living in the United States. The graph shows that the highest frequency of life expectancy is about ninety years.
Flow maps are used to track the movement of objects from one place to another. In the case of the map above, the different truck routes used are shown. The thicker the lines are, the greater number of trucks that used that route, an advantage for flow maps because it reduces visual clutter.
Choropleth maps are the most commonly used type of Thematic maps. They are particularly suited to show data when the area is evenly distributed between set areas, as in states in the map above. The map above shows how much water is used daily by each state.
The above map is a topographic representation of Mauna Kae, which is the tallest point in Hawaii. Topographic maps show elevation changes over a given section. The closer the contour lines are, the steeper the slope is. Also, if you look at the contour lines they are labeled by how high the given line is above sea level.
Doppler radar images are beneficial to meteorologists for use in predicting weather patterns and explaining atmospheric phenomenon. This map is a series of Doppler radar images of Hurricane Katrina as it passes closest to Baton Rogue back in August of 2005. Doppler radar works by sending out bursts of radio waves and then recording the radio waves that are reflected back.