Here is a list of all files with brief descriptions:

alloc.hpp	Custom allocators for array data
array.hpp	The libtgd C++ interface
foreach.hpp	Apply functions to each component or element of an array
io.hpp	Import and export of arrays to/from files and streams
operators.hpp	Overloading of common operators and functions for arrays
taglist.hpp	Libtgd metadata management via lists of tags