"This book is an interesting compilation of mathematical concepts and structures. ... chapters are stand-alone, allowing readers to pick and choose the subjects they want to explore further. ... useful as a supplement to a textbook in a traditional course or for students seeking to learn a little about a particular topic. ... for the interested student at the graduate or a very advanced senior undergraduate level, it is a well-written book on independent topics. Summing Up: Recommended. Graduate students." (S. L. Sullivan, Choice, Vol. 53 (8), April, 2016) "This book would be an excellent reference for graduate students in just about any area of pure or applied mathematics ... . It should also be accessible to researchers in (for instance) chemistry, physics, computer science, and mathematical biology. University libraries should certainly add it to their collections, and many may find a personal copy worth while." (Robert Dawson, zbMATH 1329.00002, 2016)