Today is the 107th birthday of Theodor Geisel, also known as Dr. Seuss. The postal librariana artifact which I have chosen to highlight this occasion is a first day cover for the March 2, 2004 Theodor Seuss Geisel postage stamp. I have a large collection of first day covers that feature library postage stamps, library cachets (illustrations), or both. This one pays homage to Dr. Seuss and the Geisel Library at the University of California at San Diego (UCSD) which is named in honor of Theodor and Audrey Geisel. UCSD is hosting a birthday party today for Geisel and also for the 40th anniversary of the building which houses the Geisel Library. The building was designed by world-renowned architect William Pereira, who was known for his futuristic, unconventional designs. There is a nice history of the UCSD Libraries on the website for the libraries.