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** A ''chart map'' represents each geographic feature with a [[Chart | statistical chart]], often a [[pie chart]] or [[bar chart]], which can include a number of variables. Each chart is usually drawn proportionally to a total, making it a multivariate symbol.
** ''[[Chernoff face | Chernoff faces]]'' have occasionally been used in maps since the 1970s, generally in an experimental situation.<ref>{{cite journal |last1=Wainer |first1=H. |title=Graphic Experiment in Display of Nine Variables Uses Faces to Show Multiple Properties of States |journal=Newsletter of the Bureau of Social Sciences Research |date=1979 |volume=13 |pages=2-3}}</ref><ref>{{cite journal |last1=Nelson |first1=Elisabeth S. |title=The Face Symbol: Research Issues and Cartographic Potential |journal=Cartographica |date=2007 |volume=42 |issue=1 |page=53}}</ref> This technique constructs a complex point symbol that looks like a face, with various facial features distorted to represent various variables, in an attempt to leverage the innate human experience of interpreting meaning from facial expressions. Experimental results have generally been mixed, and the technique has never gained wide popularity.<ref name="nelson1996">Nelson, E.S., and P. Gilmartin. 1996. ‘‘An Evaluation of Multivariate, Quantitative Point Symbols for Maps.’’ In ''Cartographic Design: Theoretical and Practical Perspectives'', ed. C.H. Wood, and C.P. Keller. Chichester, UK: Wiley. 199–210.</ref>
* A ''[[small multiple]]'' is a series of small maps, arranged in a grid or array, each of which shows a different (but possibly related) variable over the same space.<ref name="Tufte-EI">{{cite book |last1=Tufte |first1=Edward |title=Envisioning Information |date=1990 |publisher=Graphics Press |isbn=978-0961392116 |page=[https://archive.org/details/envisioninginfor0000tuft/page/67 67] |url=https://archive.org/details/envisioninginfor0000tuft/page/67 }}</ref> It has been argued that this is not technically a multivariate map because it is a set of separate maps,<ref name="gistbok" /> but it is included here because it is intended to accomplish the same purpose.
[[File:2016 US Presidential Election Pie Charts.png|thumb|right|300px|A multivariate symbol map of the 2016 U.S. presidential election, using a combination proportional and chart symbol]]
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