In the Hör-Brockhaus Vehicles Encyclopedia, young vehicle enthusiasts aged 4 and up can see and hear how quickly police cars with flashing blue lights race through the city, how huge combine harvesters roar as they harvest grain, and how submarines with sonar explore the world's oceans. Large panoramic photos, accompanied by over 500 audio surprises, allow children to experience all the vehicles up close. Child-friendly texts explain the purpose of each vehicle and what makes them so special.