Avant-garde refers to innovative and experimental ideas in art, music, literature, and other creative fields. It challenges traditional norms and pushes boundaries, often introducing new techniques and concepts. Artists like Pablo Picasso and Igor Stravinsky are known for their avant-garde contributions, which have significantly influenced modern culture. This movement encourages originality and often provokes thought or emotion. Avant-garde works can be controversial, as they may not always be easily understood or accepted by the mainstream. However, they play a crucial role in shaping the future of artistic expression and inspiring new generations of creators.