Book References:

1. J. Keeler (2005). Understanding NMR Spectroscopy. John Wiley & Sons Interpreting Infrared, Raman, and Nuclear Magnetic Resonance Spectra, 2-Volume Set R.A. Nyquist, Academic Press, New York, NY, 2001

Other Web references:

1. Understanding Chemistry
2. Phase Diagrams
3. Examples of NMR Spectra: Video
4. NMR Experiment: Video