The aim of the book is to give a comprehensive account of the chemiluminescence subject suitable for students, research workers, professional analytical chemists and life scientists. The chemistry of each reagent that has been used in chemiluminescence is explained and the techniques for increasing the magnitude of the emitted signal are discussed. Further sections describe the different instrumental methods that have been used and examine the sort of work that has been carried out with them. The final sections discuss the applications of chemiluminescence in some of the major areas of analytical chemistry. 1: Introduction to Chemiluminescence 2: Chemiluminescence Reagents 3: Enhancement of Chemiluminescence 4: Instrumentation Thumbnail: Chemiluminescence after a reaction of hydrogen peroxide and luminol. This is an image from video youtu.be/8_82cNtZSQE. (CC BY-SA 4.0; Tavo Romann ).