Tin classic Red Rackhams Treasure, this book provides an in-depth look at the inventions and discoveries of Professor Calculus and the real-life innovations and people that inspired one of Herges most popular characters. A comprehensive, funny tribute to Professor Calculus, one of the most endearing scientific geniuses in childrens literature. Learn all about the absent-minded professor who first appeared 80 years ago in Herges 12th Tintin book, Red Rackhams Treasure in 1943. Professor Calculus is universally loved by Tintin fans across the globe.