Author: John Green In this stunning symphony of essays adapted and expanded from his groundbreaking and critically acclaimed podcast, John Green reviews aspects of our human-centered world—from the QWERTY keyboard and Halley's Comet to the penguins of Madagascar—and gives them a perfect five-star rating. These reviews are complex and detailed, and have been hailed as “observations that serve as an exercise in memoir-based empathy.” With over 10 million lifetime downloads, Green's work is a testament to the human-centered world we live in.