How is navigation in ue4 similar to unity?

I have been using unity for quite a time .Yet I find no similarity between unity and unreal . Can anybody help.

oh I see I never went through this part… Anyway thanks bro .

Well I shall recommend you seeing this documentation my friend . Hope this helps .

https://docs.unrealengine.com/latest/INT/GettingStarted/FromUnity/

If you are not a guy who prefers reading here is a video .

https://www.youtube.com/watch?v=FX8G3XdK1vU

Agree with you about books amigo.