This video reviews measures of inflation, how to calculate them, and the effect inflation can have on interest rates and in redistributing wealth between borrows and lenders.
Let me know what questions you have!
In the video I reference a few websites:
https://www.bls.gov/
https://fred.stlouisfed.org/series/FPCPITOTLZGUSA
https://www.usinflationcalculator.com/inflation/consumer-price-index-and-annual-percent-changes-from-1913-to-2008/
https://www.rateinflation.com/consumer-price-index/usa-historical-cpi/