OK, it’s World Book Day today, March 1. Regardless whether or not this day was contrived by Hallmark (or more likely, Barnes and Noble or Amazon), it’s fascinating to look at some beautiful record holders.

[div class=attrib]From the Daily Telegraph:[end-div]

To mark World Book Day on March 1, we look at some of the world’s most valuable titles. In a list of the most expensive books sold at auction, The Economist put John James Audubon’s The Birds of America (1827-1838) at number one. It sold for $10.3m in 2010.

[div class=attrib]See the Top 10 most expensive books here.[end-div]