This is best so far book on biophotons and biophotonics. All authors are scientists and write their views on the subject from strictly scientific, experimental point of view. There are theoretical works in the book but the style and way of thinking is scientific. The subject of the book are biophotons, i.e. photons irradiated by cells. The authors come very close to biological energy and biological fields, but don't cross the line. The team of authors is international. It is centered around the International Institute of Biophysics in Germany. Unfortunately, American science is behind the rest of the world in this field. Part of that is due commercial dominance of pharmaceutical industry, part of that if due to fear of unscientific way of thinking. Thus, the science of biophotonics that comes close to scientific explanation of biological fields is almost non-existent in States. This book therefore would be recommended to scientists interested in learning current level of thinking and research in the field.