I authored "Why Reactive?" for O'Reilly
O'Reilly recently reached out to me to write a small report / mini-book about reactive systems and architectures. The report is structured around explaining the various aspects of Reactive. Tracking it's origins, through Reactive Programming (in chapter 2 "Reactive on the Application level") and Reactive Systems (in chapter 3 "Reactive on the System level"). The book does not focus on any single implementation or library, and rather discusses the conceptual goals, benefits and trade-offs such architectures bring with them.
If you're curious what all this reactive stuff is about, I'd like to invite you to give it a read. As it's a report, it is available for free, you just need to go to: Why Reactive? Download the report.
I'd like to thank everyone who helped me writing this report–especially Jonas Bonér for his invaluable feedback–thank you.