The artistic collections, constantly built up to include new objects related to various aspects of the cultural and artistic life of Bielsko-Biała and the vast neighbourhood, encompass now approximately six thousand exhibits. The time frames are established by the ancient times of the 7th century BC on the one part and the modern times of the 21st century on the other. The oldest exhibit is a facial fragment of the cover of the mummy made in Egypt during the period of the twenty-sixth dynasty. Among the Department exhibits, there is an interesting collection of Gothic sculptures and paintings representing sacred art. Those include mainly images of Madonnas, such as the Madonna with a bird from the end of the 14th century, the merciful Madonna from the beginning of the 16th century; a triptych with a centrally carved scene of the Birth of Jesus created in Antwerp at the turn of the 16th century and the image of Archangel Michael painted with tempera on the board in Marcin Czarny’s workshop in Kraków. The paintings and sculptures from the period between the 17th and the 19th century, apart from the religious works, include also portraits, generic, historical, battle and mythological scenes as well as landscapes painted by Polish and foreign painters: G. Assereto, C. von Balas, J. Brandt, F. Denys, S. Duplessis, A. Flamm, H. Goovearts, J. Kossak, T. Lubieniecki, J. Matejko, K. Markó, P. Michałowski, H. Rodakowski, H. Siemiradzki, D. van der Smissen, F. Wouters and many others.
What is the most interesting is the collection of paintings, graphics, handicrafts (pottery, earthenware, glassware, silverware, tin objects and fabrics), furniture and various types of bric-a-brac from the 19th and the first part of the 20th century, which is directly related to the period of the dynamic development of the middle class in Bielsko and Biała. It consists of portraits of the local social and political elite made by such artists as: P.M. Bohúň, M. Strzegocki, E. Świerkiewicz and J. Stokłosiński. A separate collection involves the files of Art Nouveau graphics made by the best European artists of that time, published by Jahresmappe der Gesellschaft für vervielfältigende Kunst in Vienna between 1898 and 1920. There is also a rich collection of modern art, that is paintings, sculptures, objects, drawings and graphics from the 20th and the 21st century. Those include works of the artists from the period of Young Poland (S. Czajkowski, S. Filipkiewicz, V. Hofman, A. Karpiński, J. Malczewski, A. Neumann, I. Pieńkowski, J. Stanisławski, W. Weiss, L. Wyczółkowski and others), the creators of the artistic community of Bielsko and Biała in the 1920s of the interwar period (e.g.: A. Bunsch, J. Fałat, J. Glasner, R. Harlfinger, B.P. Oczko, V. Strauss, F. Zitzman), those creating their art in that region in the second half of the previous century and those still connected with the area today (the members of the Beskid Group: J. Bieniek, J. Grabowski, K. Kopczyński, M. Kwaśny, J. Zipser i Z. Zwolski; A. Biedrawa, E. Delekta, J. Hołard, M. Kliś, B. Krzysztof, T. Sztwiertnia, H. Gocyła-Kocyba, E. Bergel, T. Moskała, R. Gryt, T. Król, J. and K. Dadakowie, K.M. Bąk, P. Warchoł and many others), as well as the paintings and graphics made by the laureates of the “Bielsko Autumn” National Painting Biennial.
The active development of artisanal organizations in both cities is proved by the exhibits related to guilds, mainly those of cloth shearers, tailors, weavers, clothiers, butchers and shoemakers. Tin chalices (wilkomy), ewers, mugs, silver and gold-plated guild shields, leather and metal shields as well as wooden guild counters (with intarsia and polychrome decorations) and wrought iron counters with a stone insert (the old strongboxes and safes). Apart from objects connected with guilds, from tin, alloys of various metals, glass and porcelain, there are also dishes for daily use, dinnerware and decorative objects created from the 17th to the 20th century.
The collection also boasts an interesting display of miniatures from the 18th and the 19th century, painted on ivory, canvass and porcelain, and in the form of ivory or wax reliefs; militaria, i.e. cold weapons and firearms, hunting weapons and various types of elements related to the armament from the period between the 16th and the 20th century as well as examples of artist blacksmithing and daily and unique fabrics.