Jeff Speck has dedicated his career to determining what makes cities thrive. And he has boiled it down to one key factor: walkability.

The very idea of a modern metropolis evokes visions of bustling sidewalks, vital mass transit, and a vibrant, pedestrian-friendly urban core. But in the typical American city, the car is still king, and downtown is a place that's easy to drive to but often not worth arriving at.

Making walkability happen is relatively easy and cheap; seeing exactly what needs to be done is the trick. In this essential new book, Speck reveals the invisible workings of the city, how simple decisions have cascading effects, and how we can all make the right choices for our communities.

Bursting with sharp observations and real-world examples, giving key insight into what urban planners actually do and how places can and do change, Walkable City lays out a practical, necessary, and eminently achievable vision of how to make our normal American cities great again.

Long before U.S. News and World Report named him one of America's Best Leaders and Oprah Winfrey called him an angel from God, Geoffrey Canada was a small, vulnerable, scared boy growing up in the South Bronx. Canada's world was one where "sidewalk" boys learned the codes of the block and were ranked through the rituals of fist, stick, and knife. Then the streets changed, and the stakes got even higher.

In this candid and riveting memoir, Canada relives a childhood in which violence stalked every street corner. If you wonder how a fourteen-year-old can shoot another child his own age in the head and then go home to dinner, Canada writes, you need to know you don't get there in a day, or week, or month. It takes years of preparation to be willing to commit murder, to be willing to kill or die for a corner, a color, or a leather jacket.