If you've written a series (i.e. trilogy) and they are currently separate listings on Amazon, you can request KDP create a single page to increase your visibility and allow you to provide your fans with a single URL instead of multiple.
Here's the end result we are going for:
https://www.amazon.com/dp/B00XLZW27A
Amazon requires that the cover of each title reference the series as is the case:
I am still sorting out exactly how to achieve this, but I wanted to share the email I sent to KDP (via the Contact Us)
Dear Amazon,
I noticed that you have the ability to create a single listing for kindle books from the same series, like this:
https://www.amazon.com/dp/B00XLZW27A
I just published my 3rd book in a trilogy (3 books total) and would like to ask if you could please create a trilogy page so I can market my trilogy with a single URL.
Here are the 3 titles:
Book 1: Christmas Bright: https://www.amazon.com/dp/B00UZPPQEA Book 2: Baskets on Christmas Lane: https://www.amazon.com/dp/B00KAHAVP2 Book 3: Together Now: https://www.amazon.com/dp/B06X6KNPWS
Let me know if there is anything else I need to provide.
Thank you!