Amazon is opening its first traditional book shop just over 20 years after it started out as an online bookseller.

The shop in Seattle - called Amazon Books - is the online giant's first physical store.

Amazon said the store was a physical extension of Amazon.com, with the books on display selected based on online customer ratings, pre-orders, sales, popularity on Goodreads and curator assessments.

Photos of the store show a section displaying the most popular books released this week according to pre-orders on Amazon.com, while another shelf contains those that are highly rated with 4.8 stars and above.

The books are displayed face-out, and under each one is a review card with the Amazon.com customer rating and a review.

Prices in the store are the same as those on Amazon.com.

In addition to books, customers can try to buy Amazon's devices from across the Kindle, Echo, Fire TV and Fire Tablet ranges.

In a letter to customers, Amazon Books vice president Jennifer Cast wrote: "Amazon Books is a physical extension of Amazon.com.

"We've applied 20 years of online bookselling experience to build a store that integrates the benefits of offline and online book shopping."