This book is a compilation of articles published by the New York Times, going back over 100 years. Grouped into categories, there are several on the same subject, but offered up chronologically so advances can be seen as they progress. Interestingly, there are a couple that fool you, as the publication date is saved for last, so articles you may think of as recent, are quite dated, and vice versa.
There is a lot to learn about here, but mainly in layman's terms. There are only a few formulas, and those are well explained, but they are there to illustrate the principal of the article, not to be a feature of the article itself. For example, there is a lot written about Fermat's Lost Theorem, but if you are expecting to see a proof, you will need to look elsewhere. However, if you are interested in learning about the people behind the calculations, their impact on the world, and how they go about their business, this is a fascinating read indeed. There is even a section dealing with early computer science and it is illuminating to learn how the basics have not really changed.
This is an easy read and you do not have to have a pad and pencil to hand to understand what is going on. While certainly an appetite wetter, it is only going to stoke your curiosity, not leaving you scratching your noggin, trying to determine what is going on. I very much enjoyed this survey of the field and learned a lot to boot!.