CryptofeedMastering Blockchain: A Virtual Book Launch in a Physically Distant Yet Still-Connected WorldPublikováno: 9.12.2020#News#O'Reilly#Virtual Reality#MeetupsCelý článek Join Tim O'Reilly, Michael Casey, Adam Levine, Daniel Cawrey and Lorne Lantz among others for a very special "Mastering Blockchain" book launch event.