Amazon Tracking to end
I’ve infrequently used Amazon’s tracking system to record what I’ve read or decided wasn’t worth the effort. The system lists every book – Kindle and print – you have purchased through Amazon.
A recent visit to the website notified me that the data will be merging with Goodreads, an Amazon-owned website.
The good news is that Amazon will send you a spreadsheet of every book you have purchased from them. I received my list just a few minutes after submitting the request.
If you are not familiar with the feature, go to https://kindle.amazon.com.

You may need to sign in. You may need to select Your Books to display your purchases. On the far right, you can limit the selections to Kindle only or choose to view all books.

To request the download of your book list, you need to click on Learn more in the gray box (Important information about kindle.amazon.com) at the top of the page. You will be linked to a page that explains what is happening with Goodreads and giving you options to link your two accounts and send your book list to Goodreads.
Even if you choose not to track your reading on Goodreads, I strongly encourage you to request the booklist.