Diophantine Geometry: An Introduction

Math Storm Olympiad Problems

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

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

Geometry , Grades 7 - 9

A History of Pi

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

Number Theory: Structures, Examples, and Problems

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

Proof and the Art of Mathematics

Fundamental Concepts of Abstract Algebra

Elements of Abstract Algebra

The Wonder Book of Geometry: A Mathematical Story

Groups and Symmetry

Class Groups of Number Fields and Related Topics