Originally published in 1937. COLOUR HARMONY ITS THEORY AND PRACTICE by ARTHUR B. ALLEN. FOREWORD: Colour Harmony: Its Theory and Practice is closely linked to Colour Harmony for Beginners and I think the reason is clear. Whereas Colour Harmony for Beginners is a little volume so written that the newcomer to this science of colour can begin right away with pencil and colour box, working out the beauties that are to be found in the field of colour harmony, the present volume gives all this practical assist ance and, in addition, it gives the essential background knowledge without which the...