The paperback versions of 2605 are available!
But the Kindle version is much less expensive.
You can buy the novel through Amazon.ca, Amazon.com, Amazon.uk, or probably several of the other Amazon sites.
Previous links:
http://www.eclectecon.net/2018/07/buy-my-book.html
http://www.eclectecon.net/2018/07/2605-available-in-both-kindle-and-paperback.html
http://www.eclectecon.net/2018/07/2605-a-very-poignant-review.html