The 2014 edition of the Scott Specialized Catalogue of United States Stamps and Covers features more the 7,700 value changes and a host of important editorial enhancements. One of the most important additions is the new symbol incorporated in the listings that identifies modern U.S. self-adhesive stamps that are difficult to soak.
Several new listing have been added, including expanded on-cover values for the Presidential definitive series and the 1954-73 Liberty definitive series. A handful of new error listings also appear including the color-omitted Jim Thorpe issue, Scott 2089a. Numerous enhancements also have been made in many of the back-of-the-book sections.