This fourth edition now includes new chapters on the latest applications and three-dimensional X-ray analysis, while the chapters on legislation, ecology, and toxicology have been rewritten to reflect recent developments.
Klaus Hunger (Dr. rer. nat., TU München) was the research director of the hydrazone pigments unit at Hoechst AG. Today, he is the Managing Director of Decernis GmbH.
Martin U. Schmidt (Dr. rer. nat., Aachen) was employed at Hoechst AG, later Clariant, in the pigment research group. Today, he is a professor at the Goethe University in Frankfurt. His main research interest is the determination of crystal structures of industrial organic pigments and pharmaceuticals.