It’s not much of a book, more a journal, but you can check my shared googledoc out: http://goo.gl/jEHT0u
Hey there! Are there any books that I can use to learn UE4, or any books that would generally help me with UE4?
No books.
In general books on Game Engines are difficult because by the time they are published things have changed and a lot of the examples won’t work.
There are a lot of sources of information available. Between the documentation, the wiki, the forums, and all the videos on YouTube there is quite a bit of info.
If you really need a book, you could print out all the documentation:
UE4 Documentation
There not even complete documentation, so how then can be books? 