A new book on MySQL replication and HA

There is a new book on MySQL replication and HA from Charles, Mats and Lars. I read it as a reviewer and learned more than a few things. It has many details on internals that are not described elsewhere unless you are willing to read the source code. It also describes how to deploy MySQL replication for many use cases. I think the book can save people from some failures that are inevitable when a distributed system is deployed for enough time on enough servers.