While playing in the city park, little Hugo wonders, Who put these buildings here? Hugo's mother leads him on a whirlwind trip through the city, the country, and everything in-between to explain the answer. This engaging book is an easy introduction to the world of urban planning, and illustrates that every building has its place. The book is based on the urban-to-rural transect, which divides cities into six different zones ranging from rural countryside to dense skyscrapers. The transect is a great way to look at the building blocks of a city, and to start thinking about how all the pieces of a city get planned in relation to one another. The urban transect was originally created by AndrÃ©s Duany, a Miami architect. Every day, city planners help shape our cities and towns -- making streets safe for pedestrians, improving building designs so they meet the needs of citizens, improving traffic flow, creating bike paths and city parks, and preserving historic buildings. This book is a tribute to the work that they do in hopes that kids will learn more about this fascinating career at an early age. This fun to read, 22-page, full-color, hardcover book was written by Planetizen Managing Editor Tim Halbur and Editor Chris Steins, and features hand-colored illustrations by artist David Ryan.