It's good for both! When Spring Boot first came out, I was already wrapping up Spring in Action 4, so the best I could do at that point was an "Oh, by the way, here's this thing called Spring Boot..." chapter at the end. So I quickly followed up with Spring Boot in Action to make up for that.
But with Spring in Action 5, I am covering Spring with a Boot-centric focus from page 1. The title is "Spring in Action 5", but you could also think of it was "Spring Boot in Action 2', because I essentially merged the two together with this edition.
ludoviko azuaje wrote:Does your book is a good resource for learning Spring Boot ?
Or I'd better go with Spring Boot in Action ?