Number Story From Counting to Cryptography

From the reviews:"The target reader of this book is a senior high school student. It is well suited to such an audience; indeed, it is exactly the sort of work I would myself have devoured some 50+ years ago. … The different topics treated are all described exactly and succinctly." (Michael A. B. Deakin, Mathematical Reviews, Issue 2008 j)“The author gives a history of the development of numbers including the natural numbers, the rational numbers, the real numbers and the complex numbers. The text is written at a level appropriate for any educated person. Throughout the text the reasons for the development of various numbers are given along with a historical view of the intuitive struggles with these new ideas.” (Steven T. Dougherty, Zentralblatt MATH, Vol. 1188, 2010)