Here is a list of all topics with brief descriptions:

Bresenham lines
Binary space partitioning
Consoles (C)
Consoles (C++)
Printing (Deprecated)	Deprecated printing functions without full support for UTF-8 or Unicode
Printing (Unicode)	Printing functions supporting UTF-8 strings
Field-of-view (C)	Field-of-view functions for C
Field-of-view (C++)	Field-of-view functions for C++
List objects	Deprecated libtcod lists for use when required by older functions
Random number generators
Pathfinding (C)
Pathfinding (C++)
Tilesets (C)	TCOD_Tileset loading and handling functions
Tilesets (C++)	Tileset loading and handling functions