This primer provides a much needed introduction to organionitrogen chemistry. Nitrogen plays a key role in all areas of organic chemistry, from DNA and proteins through pharmaceuticals to man-made drugs and new material. Despite this large application, there are just a few key principles which underpin the chemistry. This concise primer covers these principles in a discussion of all the main organonitrogen functional groups. It develops the themes logically under three specific sections, providing a clear overview of the synthesis, reactions and properties of organonitrogen compounds.