The last decades have witnessed extensive team research projects that lasted for many years and have resulted in an impressive archive of Slavic language data. These data, which have been presented in various forms (dialect atlases and dic-tionaries , historical language dictionaries, dialect monographs and historical and linguistic studies of individual relics) describe the Polish language area as well as the Slavic dialects spoken within the Polish borders.

The ever-growing lexical material that has been collected fostered comparative and etymological analyses. It also has enabled researchers to continue the inves-tigation of the linguistic history of the Slavs as well as their mutual contacts and linguistic interactions.

Dialectological work on Slavic took the form of international cooperation from early on, and this has resulted in the publication of The Slavic Linguistic Atlas (OLA), The Carpathian Linguistic Atlas, and many other works in the areas of word formation and onomastics. Moreover, slavicists also investigate a new linguistic symbiosis that arises due to political processes and resettlement. This article is accompanied by an extensive bibliography of selected publications that were written during this period.