In 2000, www.greenmuseum.org sponsored the book Ecovention: Current Art to Transform Ecologies with one hook, that it be available for free to everyone in the world. A full decade before the Copyleft and Commons movements would go global, Ecovention became the first ever museum catalog to be distributed for free. In 2017, just as my latest book Ecovention Europe: Art to Transform Ecologies, 1957-2017 was published, Ecovention mysteriously disappeared. Luckily, my co-curator Amy Lipton mysteriously found it back, so we can offer it again to the world. Hopefully, it won’t disappear again....