The range at Target includes the latest cards written and inspired by Swift with the back of each card featuring a numbered butterfly for fans to collect. From now until early November, cards 56 to 73 can be collected at Target.

"We love how the butterfly icons have caught people's attention," says Lindsay Kalback from Swift's brand management team at American Greetings. "We hear from people all the time that they're looking for a specific number and are inquiring where to buy them, and now they have even more of an opportunity to find them at retail."

Besides Target, the entire range is available at select American Greetings' retail partners across the U.S., Canada, Mexico, the U.K. and online at Americangreetings.com. In fall 2012, the line will be available in Australia, New Zealand and U.S. military bases worldwide.