Library · Book
Calculus Made Easy
Silvanus P. Thompson — The famously friendly 1910 introduction to calculus — what a derivative and an integral actually mean, with no fuss.
Why it's on the list
The maths warm-up. Physics is written in calculus, and this short, cheerful book gets you comfortable with rates of change and adding up small pieces before the heavier books arrive. It's out of copyright, so it's free to read online.
Big ideas, in my own words
Notes to come.
Questions it raised
Notes to come.