There are few exi ting d finitions onw h atis Fre e Docum e ntation, and almost no discussionof what is Free Educational Material, both of which have comparable roles in the SELF project. The mosts ignificant contribution to this debate has probably been made bythe Open Access movement, in particular the Berlin Declaration butals o by the Creative Commons project, which has initiated a debate aboutvarious levels of freedom in the field.