Understanding Eventsourcing
A really new way to look at software development in 2025 and beyond
"The first comprehensive guide combining Event Modeling with practical implementation patterns in one consistent software process"
A really new way to look at software development in 2025 and beyond
"The first comprehensive guide combining Event Modeling with practical implementation patterns in one consistent software process"
Read the book and work through the Companion Online Course.
Get hands-on practice with real-world implementations and deepen your understanding through guided exercises.
After 20 years in software development, exploring various architectural approaches from Agile to SOA to Microservices, I discovered Event Modeling in 2021. It transformed how I think about building software.
The challenge? There were almost no practical resources showing how to actually implement Event Modeling in real systems. The learning curve was steep, taking years to master.
This book changes that. It's the comprehensive guide I wish I had when starting with Event Modeling - combining theory, practice, and real-world implementation patterns.
"This is not just another technical book—it's a roadmap to more predictable, maintainable, and successful software projects."
- Gabriel N. Schenker
"By reading this book, you won't just learn new techniques — you'll transform the way you approach software development."
- Adam Dymitruk
"Focusing on a practical implementation really worked for me. I appreciate the work you have done here."
- Gary Craine
"Highly recommended reading"
- Michael Plagge
"Thanks for writing the book, it will save me so much time and toil. I really like the Todo pattern to simplify the Saga."
- William Power
"The book is packed with knowledge and provides concrete example implementations. It advances the entire topic."
- Sebastian Bortz
"The book is really great, practical, easy to read!"
- Vincent Vermesh
"I just finished reading Part 1 of your book, and I'm thrilled. The book has truly captivated me—I can't stop reading!"
- Domenic Cassisi
9 chapters covering core Event Modeling concepts, principles, and when to use them
9 chapters on practical modeling techniques, facilitation, and collaboration patterns
11 chapters walking through complete implementation with working code examples
11 chapters of reusable patterns and solutions for common challenges
Real-world examples using modern technologies:
Note: The principles are implementation-agnostic and can be applied with any technology stack.
New chapters added every two weeks on Leanpub, covering: