[im] Defining Free Cultural Works

[Janos Sugar]

This document defines "Free Cultural Works" as works or expressions 
which can be freely studied, applied, copied and/or modified, by 
anyone, for any purpose. It also describes certain permissible 
restrictions that respect or protect these essential freedoms. The 
definition distinguishes between free works, and free licenses which 
can be used to legally protect the status of a free work. The 
definition itself is not a license; it is a tool to determine whether 
a work or license should be considered "free."
http://freedomdefined.org