AbeBooks' 2011 Most Expensive Sales
By far the highest grosser this year was a first edition of Das Kapital by Karl Marx which went for a little over $50,000. It doubled the price of the runner-up, a signed first edition of To Kill a Mockingbird which took in $25,000. Other notables in the top ten include a complete run of Aspen magazine ($22,900), a first edition of The Hobbit ($20,400), and a first edition of Baudelaire's Les Fleurs de Mal ($14,900). The most unique item on the list was a handwritten manuscript by John Ruskin reflecting on his reading of Thomas Carlyle which was purchased for $18,700.
In children's literature, the most expensive sale was a signed, complete set of the deluxe editions of the Harry Potter books, which took in $11,700.