Bogoslav Kalaš is a Slovenian artist who, since 1982, worked as a professor at the Academy of Fine Arts in Ljubljana, where he served as dean from 1998 to 2005. An important note to Kalaš’s biography is the fact that he developed and invented his own painting procedure or technique, which he calls aerography and has been continuously developing it since 1971. The technique is based on the principle of transferring a motif onto canvas or paper with a mechanical painting machine. Kalaš’s work has been presented in various exhibitions at home and abroad, including the Museum of Modern Art, Ljubljana; Galerija Gregor Podnar, Berlin; City Art Museum, Ljubljana; steirischer herbst, Graz; Centre of Graphic Arts - MGLC, Ljubljana; Latvian Centre for Contemporary Art, Riga, and many others. For his oeuvre, in 2006, he received the most prominent and prestigious Slovenian award for visual arts, the Rihard Jakopič Award.

Kalaš’s art practice stretches back to the late 60s and has focused on classic subjects, which art history traditionally categorises by genre; the still life, the landscape, and the nude or, more generally, the portrait. His works are notable for the remarkably unique way they continue and develop the tradition of figurative painting within the field of graphic art. In this context it is important to relate the work of Bogoslav Kalaš to the work of Gerhard Richter, which shows us most directly that the couplings are primarily about a difference in causes, methods and timings. While Richter’s offset lithographs were created on the basis of photographs from the 80s, Kalaš’s started to produce his aerographies, made by a prototype painting machine, already in the early 70s. This places him as a pioneering figure in the context of the development of painting in the second half on the twentieth century.