The Book of Knowledge of Impractical Devices is
now available for purchase in lovely paperback book form sold out! I am truly overwhelmed by the interest and support that this project has received, though I’m sorry to say I currently don’t have any more copies of the book for sale. You can join the waiting list by sending me an email or asking me on Twitter. I’ll also announce any potential future availability on the mailing list.
The instruments that you can see on this website and in the videos are currently the only versions that exist. They are not for sale.
I am currently developing plans to make a small batch of the instruments for sale in the near future. Please let me know if you would be interested in this, as it will help me approach it in the best way. Send me an email or say hello on Twitter.