Biological catalysts which assist in accelerating certain chemical reactions are called enzymes. These proteins are highly specific in nature and can only act under the optimal temperature and pressure. On exposure to excessive heat, enzymes get denatured and lose their catalytic properties. Enzymology is defined as the study of the kinetics, structures and function of these enzymes. The important biological applications of enzymes involve metabolism, transcription, muscle contraction, hormone release, etc. They also find use in the dairy industry, paper industry, brewing industry, biofuel industry and food processing. On the basis of functions performed, enzymes can be classified into oxidoreductases, transferases, hydrolases, lyases, isomerases and ligases. This book elucidates the concepts and innovative models around prospective developments with respect to enzymology. The various sub-fields of enzymology along with technological progress that have future implications are glanced at herein. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.