This was last asked in 2014 on the annual survey. Since we have strong upvotes, you may vote for 2 posts. Each answer should link to a single post, and I will delete repeats. Please use a strong and weak upvote each for at most one answer (and posting an answer is a vote).

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Set up for Success: Insights from 'Naive Set Theory'

I very much doubt anyone else will care much about this post, so I will give my reasoning.

Please vote before you read my reasoning. :)

  • This is the only post I've ever read that actually convinced me to do something with substantial effort, that is, actually read Naive Set Theory. I really, really wanted to practice kata on sets before I attempted a math minor and I still look back on that as the best 3 weeks of last summer.
  • Reading NST the way I did taught me a lot about how not to read a math book. Don't try to memorize everything. Don't try to get every detail on the first pass. And definitely don't copy the book almost verbatim into a spaced repetition system ending up with over 8,000 cloze deletion cards which you then practice for 6 months. There is a really good reason why we learn math through proofs, problems, and puzzles.
  • Also I like the tradition of having several smart people read the same classic book and give their slightly different spins on it. The information is mostly redundant, but my all-too-human memory is thankful for it.