The first part of the diploma thesis is focused on the history and activity of the literary and visually artistic Group Ra, especially in the years 19361948. The artistic output of Ra comes out of Surrealism and is notably influenced by it; however, later Ra creates its own style following Surrealism and at the same time going beyond it. This part devotes to the signs of Surrealism, similarities and differences between Ra and the previous generation, contacts of the Younger Surrealists and also displays the poetics of the group members and their works. The second half of the thesis is concentrated on one of the Younger Surrealists, on Ludvík Kundera and his various works and specific expression with which enriches the way how Ra reflects and depicts the world. The dissertation thus presents not only a group creating art during the German occupation and war, but also exposes the contribution of the Group Ra and Ludvík Kundera to the artistic avant-garde.