free books on Amazon

Besides Prime Reading, Amazon also offers free kindle books available for purchase (can you purchase something that's free?).

Here's one way to do it.

From the left of the search bar (on Amazon's web page), select "Books" from the drop-down box.

Click on the search icon (the magnifying glass).

Select the category you're interested in (in the horizontal band titled "Shop by Category").  (You could also select the category under Books in the left column.  There's more categories that way.)

Select Kindle Edition under Refine by ... Format in the left column.

Then choose Sort by: Price: Low to High in the drop-down box at the top right.

Scroll down and look.

Some books are free with a Kindle Unlimited membership.  But others are free unconditionally.

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How about finding Prime Reading on the website?

Select Books.  Click on the search icon.

Select Prime Reading under Kindle & Audible in the left column.

It'll present a number of recommended books.

For more, click on Browse the catalog link.  Then you can choose further from a number of categories in the left column, though there's not as many choices as with the Kindle Edition books.  (But after clicking on category, you're presented with a number of sub-categories.)