The Boost C++ Libraries
Application libraries refers to libraries that are typically used exclusively in the development of stand-alone applications and not in the development of libraries.
Boost.Log is a logging library.
Boost.ProgramOptions is a library to define and parse command line options.
Boost.Serialization lets you serialize objects to, for example, save them to and load them from files.
Boost.Uuid supports working with UUIDs.