> I wouldn't want to use even a 50-year-old textbook to teach calculus today. Of course there are some excellent recent calculus books, but that doesn't mean a

> I wouldn't want to use even a 50-year-old textbook to teach calculus today. Of course there are some excellent recent calculus books, but that doesn't mean all books over 50 aren't good. There are some great old calculus books. https://en.wikipedia.org/wiki/Calculus_Made_Easy https://en.wikipedia.org/wiki/Calculus_Made_Easy https://archive.org/details/elementaryillust00demouoft/mode/2up https://archive.org/details/elementaryillust00demouoft/mode/... https://archive.org/details/j.e.thompsoncalculusforthepracticalman https://archive.org/details/j.e.thompsoncalculusforthepracti... New isn't better, old isn't worse.