To preview a card, first select the card on the table on the Browse page and then click the Preview button at the top to see the preview card of the selectec card. Review and preview have two sides; front and back. The front side only shows the question field. Clicking the Show Answer button at the bottom will show all the rest of the fields along with the answer field. To go back, click the Back button at the top on a review card or simply go to a different page on a preview card. On a review card, there are four buttons for adjusting the next interval at the bottom that replace the Show Anser button. Again will reset the interval to just one day which is essentially relearning the card. Hard will shorten the next interval whereas Good and Easy will lengthen the review learning.