Humans have evolved to stand upright and walk on two feet. Unfortunately, modern life has removed much of our need to walk. Although we have benefited considerably from these technological advances, we have suffered considerably from them as well. Our streets and roadways have become increasingly unsafe and unfriendly to pedestrians and bikers. Suburban sprawl makes driving a near-necessity. City planning focuses more on moving traffic than on enabling people to move safely. And we are becoming alarmingly less healthy as our opportunities to walk are curtailed. This book calls for the restoration of a "walkable" environment to enhance community life and address the current obesity crisis, encouraging us to reclaim our walking birthright and function once more as mobile, healthy human beings. Book jacket.