Prolog is the debut album of Polish hip-hop group Kaliber 44, released in 1996, on S.P.

The album is one of the most influential releases in the history of Polish hip-hop.

[citation needed] The album was entirely recorded and produced by members of Kaliber 44, except two tracks which were produced by Rahim from 3xKlan and Jajonasz.

The sound of Księga Tajemnicza.

Prolog is dark and minimalist, taking influences from psychedelic hip hop.