This series provides inorganic chemists and materials scientists with a forum for critical, authoritative evaluations of advances in every area of the discipline. Volume 58 continues to report recent advances with a significant, up-to-date selection of contributions by internationally-recognized researchers. The chapters of this volume are devoted to the following topics: • Tris(dithiolene) Chemistry: A Golden Jubilee • How to find an HNO needle in a (bio)-chemical Haystack • Photoactive Metal Nitrosyl and Carbonyl Complexes Derived from Designed Auxiliary Ligands: An Emerging Class of Photochemotherapeutics • Metal--Metal Bond-Containing Complexes as Catalysts for C--H Functionalization Iron Catalysis in Synthetic Chemistry • Reactive Transition Metal Nitride Complexes Suitable for inorganic chemists and materials scientists in academia, government, and industries including pharmaceutical, fine chemical, biotech, and agricultural.