A Mathematician's Apology

Elementary Calculus: An Infinitesimal Approach, Edition 3

Advanced Calculus (Revised Edition)

Ramanujan's Lost Notebook: Part I, Part 1

The General Theory of Dirichlet's Series

Trigonometry: A Complete Introduction: The Easy Way to Learn Trig

Calculus Made Easy: Being a Very-Simplest Introduction to Those Beautiful Methods of Reckoning Which are Generally Called by the Terrifying Names of the Differential Calculus and the Integral Calculus

The Calculus Story: A Mathematical Adventure

Inequalities

Calculus For Dummies: Edition 2

Advanced Trigonometry

Calculus: Problems and Solutions

Mathematician's Delight

FLCT: Funny Little Calculus Text

Calculus: A Complete Introduction: The Easy Way to Learn Calculus

Before Machine Learning Volume 2 - Calculus for A.I: The Fundamental Mathematics for Data Science and Artificial Intelligence

Introduction to the Calculus of Variations