Reading Exchanger Knowledge - these are specialist knowledge books for children aged 7 and over for simultaneous reading and listening. Each book is accompanied by an audio book in which the text - especially for beginners - is clearly and emphatically recorded. With great photos, lots of additional information and hands-on ideas. Firefighters, police and ambulances know all children and they are fascinated by blue lights and sirens. But what exactly happens to a distress call? How do the mountain rescuers work? And why is the lifeguard also a helper in action? The eight-year-old Jojo leads through the book and introduces the different helpers and their work areas and tools. Exciting ideas for participation and additional information involve the readers and bring the specialist knowledge to life. The included audio book promotes reading skills and also helps with difficult technical terms. Extra: Audio book and P.