HI @dubesar
As I am also JAVA developer and I learned it from various wherewithal, like from YouTube, Blogs, Java Documentation and so on.
But in the way , fortunately I got books which helped me in my software development journey in following ways:-
1. Writing clean code
2. Effective usage of OOPS concept
3. Making easy-to-understand documentation for the projects.
So, I want to contribute some books to your open source project to add feathers to it and making it more interesting and resourceful.
**I request you to assign this issue to me.**