For UK readers:

E-book, trade paperback, and hardback available from the following retailers:


Amazon UK  

Hive UK

Audible UK (for audio listeners)

For Australian/NZ readers:

Amazon Australia  Booktopia Dymocks Kinokuniya Australia QBD Books Apple iBooks Abbey’s Books Audible Australia

Find your local bookstore at

For International/all regional readers:

 Book Depository (free international shipping)