Reviews A Planet of Viruses by Carl Zimmer Share this: Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print By Science News June 3, 2011 at 10:39 am The engaging essays in this slim volume are chock-full of information about viruses, from the common cold to smallpox. Univ. of Chicago Press, 2011, 109 p., $20.