18. The Man of Numbers by Keith Devlin

The subtitle is "Fibonacci's Arithmetic Revolution."

I really only read about two chapters of this and skimmed the rest. The book is about Leonardo of Pisa (also known as Fibonacci), who published in 1202 Liber Abbaci, which introduced the hindu-arabic numbers to the western world. The book is structured as a series of word problems that Fibonacci solved in great detail using the new numerals.

The early part of the book was historical; I should probably be interested in it, but I wasn't. I did read the chapters that looked at the book and some of the problems it covered, showing how we would solve them today using modern algebraic notation. Devlin is good at putting across how large an effect this book had.

So, I guess if this is the sort of thing you like, you will like this sort of thing.