The Princeton Review 65x100 500 страниц. 2014 год. Princeton Review Our flashcards are fun and easy to use. You can study whenever you want, even if you've only got a few minutes. Weve incorporated a couple of unique features to help turbo-charge your learning process. Check out the color-coded progress scale on the sides of the box. You can use this scale as a simple way to keep track of how many cards you've studied so far, and to keep track of which words you've mastered and which you still need to review.