Resources for math

few articles for autodidact 

Mathematics for the adventurous self-learner
A guide to (graduate-level) self-study of mathematics
https://journeyinmath.wordpress.com/2024/07/20/journeys-of-mathematicians/
where to buy paper-books 

Amazon, of course
bookdelivery.com
Dover: I found many cheap books here but unfortunately they only deliver in States.
A Brief History of Mathematics 

https://www.bbc.co.uk/programmes/b00srz5b/episodes/downloads
A very funny video about Hitler learning Topology – I think Hitler invades others to make EU a connected space then no more clopen subsets lol.
Community 

r/math ofc
Undergrad + grad: https://artofproblemsolving.com/community/c7_college_math
Videos 

I love watching interviews by Yakerson like this, i’m gonna put this interview with Simon Singh into my to-watch list. I’m not really into popsci channels like 3blue1brown (ik each one has its own place). If a channel has like more than 50K subs, I’d be on the fence about watching it.