This text aims to teach the maths that chemists need to know through the use of applications, data, examples and problems all drawn from chemistry. It seeks to de-mystify the maths, and shows how, where and why it is used in chemistry. The text assumes little prior knowledge of maths and starts from basic mathematical principles, including understanding equations, notation, basic functions and their priorities. It then covers more specialized functions such as logarithms and trigonometric functions before presenting chapters on calculus. In this second edition, there is also a new chapter on vectors and matrices. The book includes fully worked examples provided within each chapter, and an increased number of problems, with answers provided at the end of the book.