Genre
Aerial views
7
Atlases
4
Bathymetric maps
10
Bibliographies
38
Charts, diagrams, etc
23
Databases
1
Directories
1
Drawings
32
Early maps
1
Early works to 1800
1
Facsimiles
2
Geological cross-sections
1
Geological maps
33
Graphs
26
Illustrated works
1
Index maps
18
Indexes
20
Maps
2,813
Mine maps
2
Outline maps
72
Photogrammetric maps
1
Physical maps
31
Pictorial maps
3
Posters
1
Problems and exercises
1
Quadrangle maps
4
Remote-sensing images
9
Remote-sensing maps
52
Road maps
3
Technical reports
1
Thematic maps
19
Topographic maps
58
Tourist maps
9
World maps
17