As the author says in his foreword, there don't appear to be many books that deal specifically with the depiction of dynamic and atmospheric light (although there are plenty on shading techniques). His written discussions and analysis of different light conditions and how these determine the way forms appear and should be depicted are clear and authoritative.
However, the accompanying images disappoint on a number of levels: they are reproduced in murky black and white (which does the 'colour' Japanese prints no favours), they are dated (especially those taken from the author's Tarzan strips), cover a limited range of subjects (mountainous landscapes, figures in jungles, numerous portrait heads) and lack context.
If, like me, you have in mind the application of these techniques to drawing comics you're likely to be disappointed by the lack of good examples from that medium. To conclude, you might just want to buy the book for its written analysis and find your own examples elsewhere in art books, comics etc.