Purchase:

Amazon USA https://www.amazon.com/dp/1727856481 Paperback is $12.95, Kindle is $8.49

Amazon Canada https://www.amazon.ca/dp/1727856481 Paperback is $16.97, Kindle is $9.99

Amazon UK https://www.amazon.co.uk/dp/1727856481 Paperback is £9.83, Kindle is £6.50

Amazon Australia https://www.amazon.com.au/dp/1727856481 Paperback is $28.18, Kindle is $11.93