Modular Forms, a Computational Approach

Fundamentals of Number Theory

Elements of Number Theory

Number Theory

104 Number Theory Problems: From the Training of the USA IMO Team

An Introductory Course in Elementary Number Theory

Number Theory for Beginners

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

Ramanujan's Lost Notebook: Part I, Part 1

Notebooks of Srinivasa Ramanujan: Volume II, Volume 2

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

A History of Pi

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

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

Geometry , Grades 7 - 9

Proof and the Art of Mathematics

My Search for Ramanujan: How I Learned to Count

The Wonder Book of Geometry: A Mathematical Story