Well that went very fast. See you in Spain!

If you have not paid but are confirmed registered please do so HERE

We are working to make the new site work seamlessly but new sites will have bugs. So it goes.


Hello poster family!

Once again, Flatstock 86 will occur during the Primavera Sound Music Festival Wednesday May 31 through Saturday June 3, 2023.

The show will operate from 16-00 Wednesday then 16-03 the rest of the festival.

We are limited to 20 stalls/booths. Booths will cost 310€ per single. This will cover the unit you will occupy as well as the new 16€ per person insurance fee the festival has started charging us.

If there are additional spaces available, double-booths will be made available on a first come first served basis. More details on that to come and will be 620€.

Lastly, you may have noticed the first phase of our new site is live! We are still kicking the tires and working out some bugs so IF you experience any issues please do not panic, we will be addressing any unforeseen snags as they come up. If there are any immediate issues email info (at) americanposterinstitute.com with your questions. I will do my best to answer as swiftly as possible. Thank you for your time and we all look forward to celebrating another Flatstock with you all.