In this volume, special attention is given to colour, and our perceptions of colour when described with different techniques such as watercolours, pastels, acrylics or pencils.

• 这本书特别关注色彩，以及当它们用不同的技法表现时色彩变化的方式，诸如水粉、彩色蜡笔、颜料或铅笔。