The Art of Insight in Science and Engineering: Mastering Complexity (2014) [pdf]
ocw.mit.edu
ocw.mit.edu
Also, it's a great intro on good ways to nail PM interviews, at least at Google (where I now work, thanks in no small part to the lessons from this class).
If you have a spare few hours, read this book or take his classes on edX. It'll absolutely change your intuition for numbers.
Is it really just a few hours to go through it? :-)
Art of approximation https://imgur.com/a/OvDzl
I'll pass along any cool questions.
Could you give an example? It would be great to know why you say so.
In one of the rooms in the physics building (E. Bridge), there used to be a few shelves with old theses. While checking them out one day (probably trying to kill time before a seminar), I came across Sanjoy's thesis. It was a curious little thing, unlike any of the other theses I had seen---a bit of a hybrid between a PhD thesis and a textbook, and remarkably, very readable.
That thesis was, apparently, the first version of his now famous book, Street-Fighting Mathematics. After getting lost in it for a while, I went and asked the administrative assistant if I could get a copy, and she said nobody cares about those volumes on the shelves, and I could just take it if I wanted. I still have that copy with me.
One year I attempted to audit the (somewhat legendary) class that the book part of SM's thesis was based on---"Order of magnitude physics", taught by P. Goldreich and S. Phinney. Unfortunately, the lectures were in the morning, and I managed to wake up early enough only a few times, and dropped out afterwards.
I continued to collect material on related topics over the years, and am still hoping to use them some day in a course, together with SM's books.
[0] http://www.inference.phy.cam.ac.uk/sanjoy/thesis/thesis-lett...
I haven't any problem buying it, since it's useful for my job, but that distinction has been a bit fuzzy to me (and I'll normally just err on the side of buy, just to be safe).
>> "licensed under the Creative Commons Attribution–Noncommercial–ShareAlike 4.0 International License."
You can always review those first.