Mistborn : The Final Empire is written by Brandon Sanderson
[Human]: Could you recommend a book like The Final Empire? I read and I like it a lot. [Assistant]: That is an excellent book written by Brandon Sanderson and part of a series. Do you enjoy fantasy books?  [Human]: Yes, I do. [Assistant]: You might like the Hero of the Ages then. It is the next book in the series or you could get the original trilogy in a boxed set.  [Human]: Thank for the tips. I will take a look. 
If you finish the Trilogy, the Alloy of Law is the next book in that storyline. 