Quilting by Improvisation: Exploring Curves, Openwork and Dimention by Vikki Pignatelli. Published by Dragon Threads, 2006.…….. Vikki creates beautiful, bold landscapes using new techniques that capture your imagination. She passes along her keen understanding of colour and fabrics. Chapter 2 has the best instruction on colour I have read. Through the chapters she covers tools, fabrics and technique. There are lots of stunning photos and step-by-step guides. This book is a must have for anybody who wants to take their quilting to the next step and into the realm of art.