The Western Slovakia museum is a regional museum focused on national history and geography. It provides comprehensive museum documentation in the Trnava Region and within its specialization it fulfils the tasks of a supra-regional nature. The museum performs also methodological, coordination and control activities for museums in the Trnava Region and owners of valuable items within the Trnava Region.
The museum specializes in creation and history of the Dobrofest festival - the regional scope history of book culture - the regional scope history of campanology - the national scope history of brickmaking - the national scope personality of M. Schneider Trnavský and his work - the national scope invertebrates in the field of paleontology - the national scope history of the Slovak Learned Society and personality of Anton Bernolák - the national scope