Although abstraction dominated to a great extent Kupka's production, from 1925 onwards, and most probably influenced by the Exhibition of Decorative and Industrial Arts in Paris, his work became more figurative, launching out on a new line of research based on machinism. In spite of that greater figurative link, this type of work did not waver in the same endeavour that focussed the painter's attention: the sensation of agitation and dynamism live on in him as a constant feature. He himself wrote in his book Creation in the Plastic Arts that "locomotives deserve to be given the same status as sculptures".
