Waterstones boss James Daunt on firm's Amazon deal
23 October 2012 Last updated at 23:24 BST
Many were surprised when booksellers Waterstones and Amazon announced a business partnership earlier this year. It was seen as an unlikely alliance between online and "physical" retailers, who viewed each other as rivals.
This week Waterstones is beginning to sell Amazon Kindle devices in its stores, and will have specially-trained staff on hand to assist customers.
Waterstones' boss James Daunt talked to the BBC's Leo Kelion, explaining the logic of the move for his company.