Organic And Bio-Molecular Chemistry is the component of Encyclopedia of Chemical Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. The Theme on Organic And Bio-Molecular Chemistry in the Encyclopedia of Chemical Sciences, Engineering and Technology Resources deal with the discipline that studies the molecules of life, which are made by carbon atoms, and includes also all the synthetic compounds the skeletons of which contain carbon atoms. The first chapter describes in general terms, for not expert readers, what Organic and Bio-molecular chemistry is, the nature and behavior of organic compounds in living organisms, the importance of organic compounds in the market and in our every day life. The subsequent chapters are organized in order to provide the reader with information on the structure, reactivity, analysis and different applications of Organic Compounds. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.