This poster is part of a set of four posters made for the energy company 'Spar', whose name is spelled out of the water running down the shower head. The curving lines and blue-and-white color palette are typical of its artist's style.
Born in 1941, Per Arnoldi is a Danish designer and artist. He is represented in many museums across the world such as the Museum of Modern Art in New-York, the Victoria and Albert Museum in London, amongst others.
This poster has a small tear on the left side of the poster. (See photos)