Your blog does so many things. Provide a home base for your readers, make you available to others, and...give your books a spotlight.
Yep, you want to make sure that visitors to your site know what books you have out and any that are soon to be released.
What does that look like?
You need to have a separate page on your blog, just for your books. Include a cover image, a short blurb (on paragraph if you can manage it), and easy to find links for readers to buy. This should include all the major retailers. I would also recommend including a link for readers to leave reviews for your work on Amazon, Goodreads, or both.
You can't forget about Amazon
Speaking of Amazon, remember when I said that they give you a handy personalized URL for your Author Central page. This is where you want to put it. Right up at the top. Something like: Click here for a full listing of all of Sarah's titles in both ebook and paperback. No matter how you feel about the media giant, there's no denying they sell books. While you want to update your book page every time you have a new book, including this link ensures that all your books get in front of reader's eyes, even if you get a little behind.
Check your links
Even if you already have a shiny book page with all this information listed, now is a great time to check all your live links. The internet is wonky sometimes. It just happens. The last thing you want is a reader who's ready to buy your book, but can't find it because the link on your site is broken.
If you want to get fancy, you can create a separate page for each book or series. But keep in mind that simplicity is your friend. The more clicks a reader has to go through to find your book, the less likely they will be to keep looking. No matter how you decide to structure your book page, make sure it is easy to find, easy to read, and easy to buy.