If you have two days to learn the very basics of modelling, Domain-Driven Design, CQRS and Event Sourcing, here's what you should do:
In the evenings read the Domain-Driven Design Quickly Minibook https://www.infoq.com/minibooks/domain-driven-design-quickly. During the day watch following great videos (in this order):
- Eric Evans' What I've learned about DDD since the book https://www.infoq.com/presentations/ddd-eric-evans https://youtu.be/lE6Hxz4yomA
- Eric Evans' [Strategic Design - Responsibility Traps]{http://www.infoq.com/presentations/design-strategic-eric-evans}
- Udi Dahan's [Avoid a Failed SOA: Business & Autonomous Components to the Rescue]{http://www.infoq.com/presentations/SOA-Business-Autonomous-Components}
- Udi Dahan's [Command-Query Responsibility Segregation]{http://www.infoq.com/presentations/Command-Query-Responsibility-Segregation}
- Greg Young's [Unshackle Your Domain]{http://www.infoq.com/presentations/greg-young-unshackle-qcon08}