I am planning to read these letters starting 1997 till 2020 and highlight the three key points that stood out for me. I hope these will serve as a consolidated resource for any interested readers.
A big thanks to the website here who consolidated all these letters and have made them available for readers on the web (accessed 30.4.2021) https://bettertomorrowfinancial.com/2021/04/15/2020-update-all-of-jeff-bezos-amazon-letters-to-shareholders-together-in-one-pdf-through-fiscal-year-2019/