free ebook: Microservices, events, and upside-down databases

Designing Event-Driven Systems
171 pages

"...how to apply patterns including Event Sourcing and CQRS, and how to build multi-team systems with microservices and SOA using patterns such as "inside out databases" and "event streams as a source of truth."
Event streaming as the source of truth | Technology Radar | ThoughtWorks

Microservices, events, and upside-down databases - O'Reilly Media