Karl Heinrich Hoffmann (1963) was born in Hamburg, Germany, lived and worked in 6 different countries around the world, and returned to Germany in 1995. For over 20 years he taught in high schools on a global scale in 3 different languages. He is best known for his Amazon #1 bestseller "Space and Solar System." Karl Hoffmann combines his passion for education and expertise in communication through his books for kids. His 4 children are his constant source of inspiration.