United States – In English – E-book and Paperback: Amazon  Barnes & Noble

En Español – E-book: Amazon   Paperback: Amazon

United Kingdom – In English: E-book and Paperback: Amazon  Waterstones WHSmith

Canada – In English: E-book and Paperback: Amazon

Australia – In English: E-book: Amazon

Germany – In English: E-book and Paperback: Amazon

India – In English: E-book and Paperback: Amazon

Brasil – In English: E-book and Paperback: Amazon

Japan – In English: E-book and Paperback: Amazon

France – In English: E-book and Paperback: Amazon

Italia – In English: E-book and Paperback: Amazon

España – E-Book: Amazon  Tapa blanda: Amazon

México – E-book: Amazon