Cadastral

http://www.terrain.org/columns/23/savoy.htm

A cadastral map shows property bounds as well as ownership, and it usually used for governmental purposes. In the example above, the city of Washington is being mapped out in 1792 for ownership purposes and each boundary is outlined pretty bold. Older cadastral maps such as these are particularly fascinating because it allows to get into the minds of map makers from hundreds of years ago and see what they were thinking. These map types are very interesting, and are still used by government officials today.

Hypsometric

http://www.uam.es/proyectosinv/sterea/beocia/images/figure_8_gis.jpg

Hypsometric maps represent the different elevations of the earths terrain through the use of shading and colors. Typically the lower/lighter color will depict a lower levels of elevation while the darker colors will represent high levels of elevation. The example above is a hypsometric map of the Greek island Boiotia, and the darkest colors on the left side of the map represent the highest levels of elevation.

Planimetric Map

http://imcmapping.com/ser_topo.htm

 The map shown above is known as a Planimetric map. These maps differ from the conventional topographic map because they deal specifically with the horizontal position of features, while the topograph indicates both horizontal and vertical positions. Planimetric maps are also known as "line maps", and show no relief features. The map above is the layout of a small piece of land in Charlotte, North Carolina.

Cave Painting

http://www.touropia.com/prehistoric-cave-paintings/

Cave painting are considered the earliest forms of maps. The example above is a cave painting found in Bulgaria and it seems to portray the animals and people you would likely find on that land.

Unstandardized Choropleth Map

http://www.esds.ac.uk/international/support/user_guides/gisoverview.asp

In an unclassified choropleth map the numeric attribute values are converted directly into proportionate degrees of darkness. The data is separated by numbers and is not standardizes in any way. In the example above, the map displays the number of female fertilities taken place in the different countries of Europe. These maps are particularly useful because they are easy to read and display useful information at a quick glance.

Continuously Variable Proportional Circle Map

http://connect.in.com/circle-line-map/photos-1-1-1-72426a2f1fd578228f1718a4c1204c2d.html

 A continuously variable proportional circle map uses the same principles as a conventional proportional circle and takes it a step further. In the map above, instead of simply placing circles where the major industries are located, it places the circles and then turns that into another data set. These maps are really useful because you are able to compare many variables all in one map with real ease.

Proportional Circle Map

https://www.e-education.psu.edu/natureofgeoinfo/book/export/html/1553

Proportional circle maps display data by using circles to represent numerical data. The larger the circle appears on the map the greater the amount of whatever data is being displayed belongs to that area. The example above shows Hispanic population throughout the nation and as you can see the greatest Hispanic influence takes place in California, Texas, and Florida. These maps are useful because they are very easy to understand and can be easily developed.