What this site does and does not collect
Nothing. There are no accounts, no sign-up, no newsletter, no comments, and no form anywhere on the site that takes a name or an address. There is nothing here to log in to, which is the simplest way I know of to keep a reader's details out of a database.
The filters you set are the only state the site keeps, and it keeps them in the address bar. That is why any combination of filters can be bookmarked or passed to someone else: the whole of it is in the URL. That URL travels no further than a normal page request to the server that sends you the page.
The site sets no cookies and stores nothing on your device. Close the tab and it leaves as little behind as a page can: no local storage, no session storage, no saved preferences.
There is no analytics service, no tag manager, no tracking pixel and no fingerprinting script. So there is no consent banner to click through, because consent needs something to consent to and there is nothing here to ask about.
Two, and both are worth naming precisely.
Book titles and covers link to Amazon under the affiliate tag teachbiolo-20. Following one takes you to Amazon, where Amazon's own privacy policy governs everything that happens next. If you buy the book, this site earns a small commission and you pay the same price you would have paid anyway.
The statistics page loads the Chart.js libraries from the jsDelivr CDN. Serving those files means jsDelivr sees the IP address and browser user agent of anyone who opens that page, which is a technical consequence of fetching a file from another server. The browse page, the about page and this one load nothing from a third party at all.
The web host keeps standard access logs: IP address, timestamp, requested URL, browser user agent. Every web server keeps roughly this, and it is what makes a broken page or an outage diagnosable at all.
They are used for keeping the site running and for that alone. They are joined to no other data, they build no profile of anybody, and they go to nobody else.
Data protection law gives you the right to see the personal data an operator holds on you, to have it corrected, and to have it deleted. Since none is collected here, there is no profile to produce, amend or erase, and the honest answer to a subject access request is that there is nothing held.
If anything on this page is unclear, or you want to ask about the site generally, I would rather you wrote to me than guessed:
marcsrour@gmail.com