A package for typesetting feature structures, also known as attribute-value matrices (AVMs), for use in linguistics. The package provides a minimal and easy to read syntax. It depends only on the array package and can be placed almost everywhere, in particular in footnotes or graphs and tree structures. The package serves the same purpose as, Christopher Manning’s avm package, but shares no code base with that package. Copyright (C) 2023 by Felix Kopecky, Language Science Press This work consists of the file langsci-avm.dtx and the derived file langsci-avm.pdf. It may be distributed and/or modified under the conditions of the LaTeX Project Public License (LPPL), either version 1.3c of this license or (at your option) any later version. The latest version of this license is at . This work is ``maintained'' (per LPPL maintenance status) by Felix Kopecky . The development version can be found at https://github.com/langsci/langsci-avm for those people who are interested. Pull requests are welcome. Please report any bugs or feature requests to https://github.com/langsci/langsci-avm/issues