Dave Eggers is thinking a lot about freedom these days, and nature, and what he wants to contribute to literature and literacy. Eggers’ most recent book appears to be a throwback to the days when books were our most treasured possessions: tangible entertainment in the form of beloved stories, memorable characters, settings that enchanted us, stylish writing that rewarded us for being bookish. With its bamboo hardcover laser-cut, Dave Eggers’ “The Eyes and The Impossible” simply looks unlike anything else on a contemporary bookshelf.