This site provides a concise, but thorough introduction to NMR spectroscopy with a focus on 2D NMR. This site will be most useful for students with some introductory background in NMR. The basic principles of common 2D NMR experiments are presented and illustrated with spectra. Instructors wanting to illustrate the appearance of a TOCSY, NOESY, or COSY spectrum to an undergraduate class will also find useful information on this web site.