Nice book on spectroscopy of biomolecules

Bill Parson has published a nice book Modern Optical Spectroscopy: with examples from biochemistry and biophysics.

I like it because it includes real experimental data from a range of specific biomolecular systems.
It covers all the important topics and is not scared of a full quantum mechanical treatment.
Hence, it has a good balance of theory and experiment.

It is also available as an e-book.

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