Where to buy the book?

USA: https://www.amazon.com/dp/8057044322
Canada: https://www.amazon.ca/dp/8057044322
UK: https://www.amazon.co.uk/dp/8057044330
Germany: https://www.amazon.de/dp/8057044330
France: https://www.amazon.fr/dp/8057044330
Spain: https://www.amazon.es/dp/8057044330
Italy: https://www.amazon.it/dp/8057044330
Netherlands: https://www.amazon.nl/dp/8057044330
Poland: https://www.amazon.pl/dp/8057044330
Sweden: https://www.amazon.se/dp/8057044330
Japan: https://www.amazon.co.jp/dp/8057044330
Australia: https://www.amazon.com.au/dp/8057044330