Planimetric Map

http://college.cengage.com/geology/resources/protected/physicallab/resourcedesk/glossary/p/planimetricmap.htm

A Planimetric map is a two dimensional map that is used to show roads, cultural, natural features, and information that is not related to surface topography. Planimetric maps don't regard elevation, they only deal with horizontal positions and features. The map above shows the pH of precipitation from March 25 to April 21, 1991. This map doesn't deal with surface topography but instead a natural feature: acidity in rainfall. 

Mental Map

http://www.geography.hunter.cuny.edu/~tbw/ncc/Notes/chapter2.maps/michigan.mental.map.jpg

Mental maps are representations of how people view the world around them. Geographers are interested in learning how different people view the things surrounding them.  The map above is a mental map of Michigan from the perspective of someone from Michigan. It represents the prominence of Michigan in this individuals eyes. Michigan and the states surrounding it are the largest, while those states further away are small and less important.