The latest series of greeting cards written and inspired by Taylor Swift are available at Target Stores exclusively now through early November. Her cards for American Greetings Corporation are sequenced with a butterfly icon on the back, with the 18 new additions (numbered 56-73) celebrating birthdays and friendship. Previous cards in the series have been sold at retail stores in the U.S., Canada, Mexico and the U.K. By fall 2010, the products will be available in Australia, New Zealand and U.S. military bases worldwide. Swift will release a new album, Speak Now, on Oct. 25.