Trigonometry: A Complete Introduction: The Easy Way to Learn Trig (Teach Yourself)

Calculus: A Complete Introduction: The Easy Way to Learn Calculus (Teach Yourself)

Algebra: A Complete Introduction: The Easy Way to Learn Algebra (Teach Yourself)

Mathematics: A Complete Introduction: The Easy Way to Learn Maths (Teach Yourself)

Statistics: An Introduction: Teach Yourself: The Easy Way to Learn Stats