United States (Hardcover/eBook/Audiobook)
Abebooks (hardcover)
Amazon.com (hardcover/eBook/audiobook)
Audible (audiobook)
Audiobooks.com (audiobook)
Chirpbooks (audiobook)
Barnes & Noble (hardcover/eBook/audiobook)
Everand (eBook)
Google Play (audiobook)
Libro (audiobook)
Rakuten/Kobo (audiobook)
Target.com (hardcover)
Thriftbooks (hardcover)
International (Hardcover & eBook)
Amazon - UAE (hardcover)
Amazon - Brazil (hardcover)
Amazon - France (hardcover)
Amazon - Japan (hardcover)
Amazon - Mexico (hardcover)
Amazon - Singapore (hardcover)
Amazon - South Africa (hardcover)
Blackwell's (United Kingdom)
Bol.com (Belgium/hardcover)
Catch.com (Australia/hardcover)
Desertcart (Cyprus/hardcover)
Ebay Ireland (Ireland/hardcover)
Feltrinelli (Italia/eBook)
Hugendubel (Germany/hardcover)
Indigo (Canada/hardcover)
Mighty Ape (New Zealand/hardcover)
Ubuy.com (Nepal/hardcover)
Ubuy.com (Nigeria/hardcover)