Werner Backes, Drachen bauen, 1984, 128 pages, ISBN 3-473-42281-9 (german)

Another nice Backes book: It doesn't cover quite as many different kites as his book "Drachen aus aller Welt" but has a more detailed introductory section. This book is more of a beginner's book whereas the other book is more suitable for intermediate level and advanced builders.