In 2020, NORDUnet turned 40 years old. We celebrated this with an online event on Friday, 27 November 2020. During this event, we launched the eBook “The Power of Nordic Unity”, about 40 years of Nordic R&E Network collaboration. This video is the trailer video of our 40 Years Anniversary eBook, that is available in iBooks, EPUB3, and PDF formats from https://40.nordu.net/.