The NOSTR protocol
This is a convenient compilation of the Nostr protocol specification (https://github.com/nostr-protocol) as a single PDF that is easy to read and print. The protocol comprises a series of nips (Nostr Implementation Possibilities), where NIP-01 is the protocol's base. I set the minimum price for the packaging effort, but you can get it for free.
https://leanpub.com/nostr
![Nostr Monthly [July 2023]](https://cdn.feather.blog?src=https%3A%2F%2Fimages.unsplash.com%2Fphoto-1581417478175-a9ef18f210c2%3Fixlib%3Drb-4.0.3%26q%3D85%26fm%3Djpg%26crop%3Dentropy%26cs%3Dsrgb&optimizer=image&quality=80&width=280)
![Nostr Monthly [June 2023]](https://cdn.feather.blog?src=https%3A%2F%2Fimages.unsplash.com%2Fphoto-1560322611-a2c5b22b79ba%3Fixlib%3Drb-4.0.3%26q%3D85%26fm%3Djpg%26crop%3Dentropy%26cs%3Dsrgb&optimizer=image&quality=80&width=280)
