Harmonic Vector Fields: Variational Principles and Differential Geometry

How to Solve It: A New Aspect of Mathematical Method

Ordinary and Partial Differential Equations

Lost in Math: How Beauty Leads Physics Astray

Lecture Notes for Linear Algebra

Mathematics for the Physical Sciences

Elements of Robotics

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

Calculus For Dummies: Edition 2

A Friendly Introduction to Differential Equations

Foundations of General Relativity: From Einstein to Black Holes

The (Mis)Behaviour of Markets: A Fractal View of Risk, Ruin and Reward

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

103 Trigonometry Problems: From the Training of the USA IMO Team