Moscowian Party Book is a decorative font that originated in Russia in the 1930s. It was originally designed for use in posters and other promotional materials for the Soviet Union's Communist Party. The font features bold, blocky lettering with exaggerated and angled serifs, giving it a modernist, industrial look. Today, Moscowian Party Book is still popular among graphic designers and artists looking to add a retro, Soviet-style flair to their projects.