This text book is especially suited for the advanced undergraduate or graduate student in chemistry, biochemistry, medicinal chemistry and pharmacology. This text has been substantially written to reflect new research in the field, and features a major new chapter on self-assembly, auto organization, and molecular devices. The main aim of writing this book is to mimic biological processes such as enzyme action, though the synthesis of chemical models with the tools of the organic chemistry. This text includes figures which help the student understanding the concepts of bioorganic chemistry.