I've posted a batch of autographed, hardback editions of A Planet of Viruses in my Amazon store. You can have your own inscribed copy for ten dollars plus shipping. Click here to order. For those unfamiliar with the book: it's a linked collection of twelve essays on twelve viruses. I use each one to illustrate a broad lesson about viruses in general, such as the fact that they are the most abundant life form on Earth and that they make up a sizable portion of the human genome. The Washington Post wrote: "In A Planet of Viruses, science writer Carl Zimmer accomplishes in a mere 100 pages what other authors struggle to do in 500: He reshapes our understanding of the hidden realities at the core of everyday existence." PS: The paperback edition will be coming out this spring.