The USPS 2012 Stamp Year Book is a collection of United States postage stamps issued during the years 2011 to the present. This set includes stamps in Mint Never Hinged quality and Fine/Very Fine grade, all originating from the United States. The stamps featured in this year book are perfect for collectors looking to add a complete set of United States stamps to their collection. Each stamp is from the United States Postal Service and is a valuable addition to any stamp collection.