Distributed worldwide by Ingram Book Group

USA:
Indiebound
Amazon.com
Baker & Taylor
Barnes & Noble
NACSCORP
Books-a-Million
Powell’s Books
Alibris

UK:  
Amazon.co.uk (retailer)
Bertrams (wholesaler)
Blackwell (library supplier)
Book Depository (Amazon Marketplace)
Coutts (library supplier)
Dawson (library supplier)
Gardners (wholesaler)
Mallory International (wholesaler)
Paperback Bookshop (Amazon Marketplace)

CANADA:
Amazon.ca (retailer)
McNally Robinson (retailer)

SOUTH ASIA (eg. Pakistan):
Random House India

PAKISTAN:
Liberty Books