This album is dedicated to and revels in the expressive power of pop music.

NPR: Cosmopop: European Music with a Global Flavor

But it is the expressive power of paint, especially oil paint, as an artist's medium that really gets Mr Ball going.

ECONOMIST: Science and history of colour

The OLYMPUS STYLUS X series is a lineup of compact digital cameras that offer superb image quality and expressive power, and is the first compact digital camera equipped with a lens bearing the ZUIKO name.

ENGADGET: Olympus unveils Stylus XZ-10 with f/1.8-2.7 zoom, smartphone sharing app

But there is an even wider expressive range in his recent works, which encompasses lightness and humour as well as power and seriousness.

ECONOMIST: Elliott Carter