Sir Kenneth Clark possesses a rare ability for conveying artistic enthusiasm to those who might never encounter his more learned studies and catalogues.

In 'Landscape into Art' he effectively outlines the growth of landscape painting as an independent art, from the early use of symbols taken from nature to the canvases of such great painters as Constable and Corot, Turner and Van Gogh, Cezanne and Seurat. And today - what changes of survival, he asks, has the image of an enclosed garden in an age of slide rules and nuclear power?