mwcls is a set of document classes for LaTeX 2e designed with Polish typographical tradition in mind. Classes include: ‘mwart’ (which is a replacement for ‘article’), ‘mwrep’ (replacing ‘report’), and ‘mwbk’ (replacing ‘book’). Most features present in standard classes work with mwcls classes. Some extensions/exceptions include: sectioning commands allow for second optional argument (it is possible to state different texts for running head and for TOC), new environments ‘itemize*’ and ‘enumerate*’ for lists with long items, page styles have variants for normal, opening, closing, and blank pages.