This disclaimer is included in the USPS Store's website about the 2013 Stamp Yearbook:
Quote:
"Due to information not available at time of publication press, Harry Potter stamps and mount are not included in the 2013 Stamp Yearbook."
I'm sure the USPS rights to the images and copyright laws for the Harry Potter stamps had a lot to do with the uncertainty of whether or not the stamp would get issued in 2013 or 2014, and the information was not yet finalized as of the time of publication of the 2013 Stamp Yearbook. One of the pitfalls of all of the USPS "pop culture" themed stamps, I guess.
Due to the omission, will be included in the 2014 Stamp Yearbook? I guess we'll have to wait and see.