Genre
Maps
2,746
Outline maps
72
Topographic maps
56
Remote-sensing maps
49
Bibliographies
38
Drawings
32
Physical maps
30
Graphs
26
Geological maps
25
Charts, diagrams, etc
23
Indexes
20
Index maps
18
World maps
17
Thematic maps
16
Bathymetric maps
10
Tourist maps
9
Remote-sensing images
8
Aerial views
7
Atlases
4
Quadrangle maps
4
Pictorial maps
3
Facsimiles
2
Mine maps
2
Databases
1
Directories
1
Early maps
1
Early works to 1800
1
Geological cross-sections
1
Illustrated works
1
Photogrammetric maps
1
Posters
1
Problems and exercises
1
Road maps
1
Technical reports
1