Wols is considered a pioneer of Art Informel and the leading proponent of Tachisme. Under the blanket term of 'Circus Wols', the artist created an interconnected, multifarious oeuvre made up of paintings, graphic works and photographs. Over the course of his artistic development, he rejected any relation to reality and created a new form of abstract art. When asked about the meaning of his motifs, the artist answered: "You find it difficult to understand my drawings? … feel them … No analyses nor explanations, please!" Wols’ mature works are characterised by bold brushstrokes and a relief-like painting structure.