Helmuth Theodor Bossert

• An encyclopaedia of colour decoration from the earliest times to the middle of the XIXth century,
• Folk art of Asia, Africa, and the Americas
• Folk Art of Europe
• Ornament, Two Thousand Decorative Motifs in Colour, Forming a Survey of the Applied Art of All Ages and All Countries
• Peasant art in Europe
• Treasury of Historic Folk Ornament in Full Color