More than any other writer of his generation, Dave Eggers is a brand. The 42-year-old author is accomplished in many fields — he’s the founder of McSweeney’s, a successful independent publishing house and innovative literary journal that grew out of a still-vital humor website. He’s the head of the multi-city literacy nonprofit 826, which is partly supported by whimsical storefronts like the Brooklyn Superhero Supply Store. For his work, he’s been awarded the TED Prize, the Heinz Award and the Los Angeles Times Book Prize Innovators Award. Yet inside all of that is Eggers the writer, who’s publishing his first novel of pure invention in a decade, A Hologram for the King.