The news comes as Amazon continues to lay off thousands of workers as it looks ahead to what its chief executive has described as economically uncertain times.
Amazon will close its UK-based retailer Book Depository later this month.
The online bookshop was founded in Gloucester before being acquired by the tech giant in 2011.
In a message on its website, Book Depository said to customers: "We are sorry to let you know that Book Depository will be closing on 26 April 2023.
"You can still place orders until midday on 26 April and we will continue to deliver your purchases and provide support for any order issues until 23 June.
"From all of us at Book Depository we want to say thank you.
"Delivering your favourite reads to you since 2007 has been a pleasure."
Book Depository's website said it offered more than 20 million books with free delivery worldwide, adding that its vision was to provide "all books to all" by improving range, access and affordability of books.
It has offices in London, Gloucester, Madrid, Cape Town and Chennai, with fulfilment centres in the UK and Australia.
It is not clear how many jobs will be lost through the closure.
It comes as Amazon lays off thousands of workers, looking ahead to what it describes as economically uncertain times.
Late last month it announced it would slash 9,000 jobs in its cloud services, advertising and Twitch units, following the 18,000 job cuts announced in January.
In a message to staff at the time, CEO Andy Jassy blamed "uncertain economic conditions", adding: "This was a difficult decision, but one that we think is best for the company long term."