I am pretty sure that I saw someone preparing a book with simple slides about nostr. But I can't remember who it was. I think it was a German user. Maybe someone knows more?

nostr:nevent1qqs8mfk0yhfrw6cgl6yqmzfxnlapupjyd6pduyx8n8laud3dkdy6kxcpz3mhxue69uhhwmm59ehx7um5wghxuet59upzpsvrr7lzv5lhv9jyy82hmdkwuw9cemuvuem3h3juztu9g00ykwdlqvzqqqqqqysp8x37