The U.S. Postal Service is rolling out its 2012 stamp lineup this week with a little tease to lure a younger audience of philatelists: an online preview of one first-class stamp a day on its social media sites.

(US. Postal Service / U.S. Postal Service U.S. Postal Service )

The first of 30-plus stamps — all “Forever” models — is a panoramic view of blooming cherry trees around the Tidal Basin in Washington, a celebration of the 100th anniversary of the gift of 3,020 Japanese trees from Tokyo to the nation’s capital. The unusual design features two stamps, with the Washington Monument and the Jefferson Memorial in the background. A couple is standing under the tree on the right, with the woman holding up a digital camera to take a photo.

Other stamps unveiled this week honor Tarzan creator Edgar Rice Burroughs and offer a new installment in the “Love” series.

To see the rollout, go to www.facebook.com/USPSStamps and www.beyondtheperf.com.