The physical book is available in all bookstores. It’s available as an e-book as well.
Links to each individual retailer is below:
If you are ordering in Europe the shipping time is a bit longer than usual due to Amazon’s issues.
Amazon.co.uk – LINK.
Amazon.com – LINK.
Waterstones – LINK.
Barnes & Noble – LINK.
Foyles – LINK. (coming soon)
If you want to order bulk quantity for your company or an event, please email me on email@example.com