Two Boov Aliens from Adam Rex's The True Meaning of Smekday. Adam Rex hide caption toggle caption Adam Rex Review Sci-Fi Invasion: A Weird, Brilliant Vision Of Earth February 27, 2012 Get ready: In 2013, an alien race called the Boov are going to invade Earth. Or, at least, that's what happens in Adam Rex's vision of the future. Author Gin Phillips says that The True Meaning of Smekday stuck with her. Do you have a favorite book about aliens? Let us know in the comments below.