An introduction to organic chemistry, focusing primarily on the basic principles underlying the structure and reactivity of organic molecules. Hydrocarbons, alcohols and ethers, aldehydes, ketones and carboxylic acids are discussed, with emphasis on nomenclature, preparation and reactions of hydrocarbons, alkyl halides, organometallic compounds, alcohols and ethers, reaction mechanisms, stereochemistry, and tools for structure determination, including mass spectrometry and infrared spectroscopy.