1 SEK equals one leaf

For each book or other item that you buy or sell you get one leaf per SEK. The leafs are valid for one year. When you have reached 3,000 leaves in the last year, you have saved a bonus tree and your account will automatically be charged with a 50 SEK gift card to that you can use for purchase at Campusbokhandeln or campusbokhandeln.se. 6,000 leaves give 100 SEK in gift cards, etc. Log in to My account to see your current leaf balance.