https://amzn[.]to/4frEGyC is a referral link, and referral links are not canonical links, which the guidelines implore us to use.

The above url resolves to the following (which I have rendered safe/non-clickable by slightly mangling the url with “[.]” in place of “.”):

https://www.amazon[.]com/dp/B07JW5WQSR?bestFormat=true&k=the...

Here is a non-referral link to the same product page:

https://www.amazon.com/dp/B07JW5WQSR

The book has its own Wikipedia page, which would have been a non-commercial option, which would lessen any potential conflict of interest:

https://en.wikipedia.org/wiki/The_Victorian_Internet