This is a similarity matrix which shows how similar a group's signatures are. The higher the score on the matrix, the more similar, the lower the score, the less similarities. This matrix can be found at http://www.biomedcentral.com/1471.2164/8/353/figure/F5?highres=y

This is a stem and leaf plot which depicts the arm span of a group of students in centimeters. The plot allows an easy way to determine mode and median of a data set. This can be found at http://www.europa.com/~paulg/mathmodels/datacenters.html

This is a box plot which illustrates a data range for a given item. This box plot shows the energy efficiency of four machines. It can be found at http://www.itl.nist.gov/div898.handbook/eda/section3/boxplot.htm

This is a histogram which uses bars to depict frequencies of data. This histogram can be found at http://www.xfy.com/manual/dev/developer/1.4/spec/spec_chart.html

This is a parallel coordinate graph which allows visualization of multiple data sets using geometry. This graph compares four characteristics of flowers from the Iris family. It can be founs at http://home.comcast.net/%7Epeh2.hoffman/tablevizx.pdf

This is a triangular plot which allows three variables to be considered. This plot shows the ancestry of particular ethnic groups and can be found at http://en.wikipedia.org/wiki/File:Admixture_triangle_plot.svg

This is a windrose which shows direction, frequency, and in this case, speed of wind in a particular location. The longer the spokes, the more frequently the wind blows from the correlating direction on a compass. This windrose can be found at http://lion.cs.uiuc.edu/projects/wsn_ornl.html

This is a climograph which is a graph showing the temperature for a specific location over a period of time. This graph can be found at http://www2.volstate.edu/kbell/climographs.htm

This is a population profile which shows the age distribution of a population. This profile contrasts what the population profile should look like for Africa, and what it actually does due the loss of life to AIDS. It can be found at http://www.fao.org/docrep/005/y8331e/y8331e05.htm 

This is a scatterplot which shows a trend in various data points. This graph in particular shows a correlation between fertility rates and voting trends in the 2004 presidential election. It can be found at http://www.rasmusen.org/x/2006/03/30/1113

This is an index value plot. It can be found at http://www.mathworks.com/access/helpdesk/help/toolbox/filterdesign/ref/refex_adaptfilt_filtxlms.gif

This is a Lorenz curve depicting the distribution of wealth in the United States. It constrasts what the curve would like like if income were distributed equally with the actual distribution. This graph can be found at http://www.answers.com/topic/lorenz-curve

This is a bilateral graph which means that it depicts data on both sides of the zero value. This graph shows the annual savings rate of Americans and can be found at http://bigpicture.typepad.com/comments/2006/06/james_altucher_.html

This is a bivariate , standardized choropleth map depicting nominal data. The map shows both how voters voted as a percentage of a counties population as well as whether the county is considered rural or urban. This map can be found at http://portfolio.kelsocartography.com/albums/protfolio.kelsocartography.com/2006-b/vaSenate.jpg 

This is an unclassed choropleth map as the data is not put into specific intervals but is instead on a continuum of a color scale. This is a map of the fertility rates of various counties in the state of Idaho. It can be found at http://www.commomgis.com/InternetMapsBook/unclassed.html

This is a classes choropleth map meaning that the data have been organized into specific intervals. Since only one set of data is being presented, this is also a univariate choropleth map. The information shown is raw data that has not been areally averaged so this is an unstandardized map as well. This map of the amount of money paid by the government to individuals as incentive not to grow crops on their land can be found at http://portfolio.kelsocartography.com/albums/portfolio.kelsocartography.com/2008/FarmDay1Map.jpg

This is a range graded proportional circle map meaning depicting the number of burglaries in each area of Philidelphia. Each size circle represents a particular range of numbers, meaning that only the four sizes represent all numbers on the map. This map can be found at http://www.personal.psu.edu/users/t/i/tib105/GEOG486/lesson7_Baugh.htm 

This is a continuously variable proportional circle map of population distribution that came from a slideshow of various map examples. The slideshow can be found at http://www.sinfonica.or.jp/international/indonesia_hp/Type%20of%20Statistical%20Map.pdf 

This is a DOQQ map showing the meander scars of a river in Kansas. It can be found at http://www.emporia.edu/earthsci/student/laird2/gisproject.html

The is a DEM map of the Great Lakes from the MSU Institute of Water Research. It also shows the boundaries of the watershed for these lakes. The map can be accessed at http://www.iwr.msu.edu/outreach/adv_tech/agp/gl-dem.htm

This is a DLG map of the entire Lake Tahoe area provided by the USGS. It can be found at http://tahoe.usgs.gov/DLG.html

This is a DRG image of Emerald Bay, the southwest corner of Lake Tahoe. It can be found on the USGS website at http://tahoe.usgs.gov/DRG.html

This is an example of how to construct isopleths on a map from the Food and Agriculture Organization of the United Nations. It can be found at http://www.fao.org/DODREP/003/TO446E/TO446E06.htm

This is an isiopach map demonstrating the extent of Silurian (a geologic time period about 443 million years ago) evaporite basins in the Great Lakes area. This map can be found at http://heigheredbcs.wiley.com/legacy/college/levin/0471697435/chap-tut/chaps/chapter10-06.html

This is an isohyet map of the precipitation in Antarctica. It is from the University of Wyoming atmospheric science page and can be found at http://www.das.uwyo.edu/~geerts/cwx/notes/chap3/antarctica.html

This is an isotach map which shows the forecast for India for December 8, 2008. It is from the Indian government and can be found at http://www.monsoondata.org/wx/india.120hr.html

This is an isobar map that depicts Cyclone Grace coming ashore in Australia in 2004. It is from a website of someone's personal travel memoirs an can be found at http://www.summ.org/travels/014_to-sydney/2004

This is a LIDAR scan of a Daly City, California landslide that occurred in 2007. This scan was done by the USGS and can be found at http://soundwaves.usgs.gov/2007/06/pubs.html

This is a Doppler radar image of a tornado that hit Oklahoma City, Oklahoma on May 8, 2003. It hit and destroyed a General Motors plant there but due to advance warning, there were no injuries. This image came from the NOAA website at http://www.noaanews.noaa.gov/stories/s2097.htm

This is a black and white aerial photo that I found on a website that describes variations in the type of film used for aerial photographs. It can be found at http://freegeographytools.com/2007/goofing-around-with-pan-sharpening

This is an infrared aerial photo which shows the heat loss emanating from an office building in Oregon. This photo came from a company which specializes in energy efficient upgrades for companies. The photo can be found at http://www.oregoninfrared.com/Infrared_Aerial_Photo.htm

This is a cartographic animation of sea level air pressures. The entire series moves through each month of the year to show the annual flow. The top map is of December and the bottom is of June. This map came from the University of Wyoming and can be viewed at http://uwacadweb.uwyo.edu/JSHINKER/animations/global/flash/mslp.html

This is a statistical map which depicts the percentage of change in residents of each state from the 1990 census to the 2000 census. Each shade of green represents a different amount of change which makes it easy to interpret general trends in regions of the country though it is not as helpful for more specific analyzation of data. The information from this map comes from the US Census Bureau and the map can be found at http://www.census.gov/population/cen2000/map02.gif

This cartogram depicts how many articles from each region were found in two current events magazines. These two particular representations are of The Australian and Slate. Each region on the map is scaled to represent how important each area is in the minds of the magazine's publishers. This map came from the website of a professor at the University of Montreal and it can be found at http://rs.resalliance.org/?s=cartogram

This flow map depicts the top ten states from which people migrate to both California and New York. The wider the lines, the more people that migrate from that state. This map came from Stanford University at http://graphics.stanford.edu/papers/flow_map_layout/ca-ny-web.jpg