Through "Faith" or "Works"

I am thinking about reading the Bible and I wanted to understand how we get saved. According to the Bible, are we saved by faith alone or faith and works?? I have heard some preachers who say that you don’t need to repent to be saved but they say that repentance is a work. I just wanted to understand how exactly a non believer gets saved because many religions teach a work based salvation. Which is the right way to get saved and what book of the Bible explains salvation more in detail??

Joseph Norman