How Numbers Work: Discover the strange and beautiful world of mathematics

A Beginner's Guide to Constructing the Universe: The Mathematical Archetypes of Nature, Art, and Science

An Introductory Course in Elementary Number Theory

Ramanujan's Lost Notebook: Part I, Part 1

Notebooks of Srinivasa Ramanujan: Volume II, Volume 2

Number Theory: Structures, Examples, and Problems

Complex Numbers from A to ... Z: Edition 2

A History of Pi

Ramanujan's Place in the World of Mathematics: Essays Providing a Comparative Study

Proof and the Art of Mathematics

My Search for Ramanujan: How I Learned to Count

Complex Variables

Attacking Problems in Logarithms and Exponential Functions

Class Groups of Number Fields and Related Topics

God Created The Integers: The Mathematical Breakthroughs that Changed History

Spectral Geometry of Partial Differential Operators