This book is a comprehensive guide to using water-soluble salts and pigments in porcelain, and is a valuable resource for anyone working in porcelain or interested in colour in clay. It is based on the work of one man, Arne Ase, a ceramic artist from Norway who was the initiator of a technique using soluble salts on porcelain bodies to obtain subtle and glowing colours that permeate the forms in unusual ways. This book clearly explains the use of these pigments and the development of the water-colour technique that is now being used to great effect by artists from Europe, the USA and Australia. The whiteness and translucency of porcelain lends itself to becoming a clay canvas very well; when lit afterwards, the colours glow through. The book shows the artist's extensive testing resulting in a wide range of exciting and beautiful colours which can be achieved from the endless combinations of pigments and minerals suggested, providing the reader with a broad palette from which to choose. The book is highly illustrated with both the test tiles and the fabulous work achieved with these colours and techniques.