Book excerpt: In this free Summer Reading Nonfiction Sampler, Hachette Book Group brings you a taste of several of the enlightening, entertaining books our imprints are publishing in summer 2014. Authors Tory Johnson (The Shift), Beth Macy (Factory Man), Wallace "J." Nichols (Blue Mind), Maximillian Potter (Shadows In The Vineyard), John J. Ratey and Richard Manning (Go Wild), Josh Sundquist (We Should Hang Out Sometime: Embarrassingly, A True Story), and Matthew Paul Turner (Our Great Big American God) represent a wide breadth of expertise in business, journalism, science, medicine, motivation and religion, and each of their books are as entertaining as they are informative. This summer, turn your reading over to the terrific authors of Hachette!