We’re in the era of “chokepoint capitalism,” suggest Rebecca Giblin and Cory Doctorow in their new book. The premise: Some of the biggest, most recognizable tech companies — Amazon, Facebook, etc. — engage in exploitative practices that limit economic competition in ways that allow them to capture value that should go elsewhere. The book explores industries such as book publishing, news, and music to show how “big content” constructs “anti-competitive flywheels” that essentially lock in users and suppliers while forcing creatives to accept below-market prices. While the book’s broad complaint isn’t new, the argument makes an strong case that the current creative market is just about anything but free.