The field of chemistry which analyzes the role of metals in biology is known as bioinorganic chemistry. It draws on the principles of biochemistry and inorganic chemistry for studying the effects of substrate bindings and activation, electron-transfer proteins, group transfer chemistry, etc. Bioinorganic chemistry attempts to understand different phenomenon like the behavior of metal proteins, artificially induced metals and non-essential metals used in the fields of medicine and toxicology. This encompasses elements like iron, cobalt, zinc, copper, nickel, etc. Some of the important areas of research under this discipline are enzymology, toxicity, metal ion transport and storage, biomineralization, nitrogen fixation and photosynthesis. This book attempts to understand the multiple branches that fall under the discipline of bioinorganic chemistry and how such concepts have practical applications. The topics included herein are of utmost significance and bound to provide incredible insights to readers. This will serve as a valuable source of reference for those interested in this field.