A superb and fascinating collection of articles on mathematics topics, somehow retaining clarity for the interested layman, to the student, to the professional. An absolute necessity for anyone studying math as well.<br><br>Everything about this book is great. The writing quality is remarkably high. The production quality is excellent. There is a sampling of interesting stuff in the articles for everyone.<br><br>I really, really wish I had had a book like this in college. One can get a clearer picture of some fields just by reading its three-page summaries than by taking a whole course in many cases.<br><br>Not sure what else to say, just that the book is wonderful.