<p>Don’t worry about not having an economics backround. I took the courses without knowing a single thing about economics and still got 5s on both macro and micro. Now, the course is still very easy and is mostly concept-based. You could probably learn the course from a review book, but because you’re going to have a year, you might as well pick up a textbook. Trust me, it’ll be much easier to actually comprehend what you’re learning (especially for macro) with a textbook. We used Economics by Krugman and Wells. Best of luck!</p>