This MIT article is okay at an introduction to the subject.<p>I found the following Youtube video to be better however: <a href="https://simons.berkeley.edu/events/theoretically-speaking-mary-wootters" rel="nofollow">https://simons.berkeley.edu/events/theoretically-speaking-ma...</a><p>As a ~1-hour talk, Dr. Wootters is able to dig more deeply into Reed Solomon codes (a very popular error-correction code for nearly 50 years), as well as applications into strange stuff: like using RS codes in "Test Pooling" to save money on Syphilis tests (and probably the same methodology being used for "Test Pooling" in today's COVID19 world).<p>Dr. Wootters keeps things relatively dumbed down, never getting too into the weeds of the math (and indeed: only sticks with the GF(5) field, a prime field instead of talking about the more applicable extension fields). Still, extension fields follow mostly the same concepts, and GF(5) is sufficient to cover all the concepts.