Mastering the Lightning Network is a technical book by O’Reilly Media, about the Lightning Network (LN), a protocol layer that runs on top of bitcoin and other open blockchains to provide near-instant, cheap and secure payments. 

The book was announced on August 28th 2019 as a collaboration between Andreas M. Antonopoulos, Olaoluwa Osuntokun (roasbeef) and René Pickhardt. 

Mastering the Lightning Network will be published in Q4 of 2020. Writing begins in September 2019 as an open and collaborative project on Github. 

As an open-source book, Mastering the Lightning Network will be free to read and share from the very first sentence. A year after publication the license becomes even more open, allowing derivative and commercial use of all the content.