I have to confess that I did not yet read it but I read last year edition and therefore I can only recommend it (I am already invested anyway in gold, gold miners and silver so it is less a priority for me):
In Gold We Trust 2020 report:
long version: https://ingoldwetrust.report/wp-content/uploads/2020/05/In-Gold-We-Trust-report-2020-Extended-Version-english.pdf
Short version: https://ingoldwetrust.report/wp-content/uploads/2020/05/In-Gold-We-Trust-report-2020-Compact-Version-english.pdf
Enjoy the reading guys...