The course of a year is full of wonderful puzzles. And every season has secrets of its own, hidden away in little ways that might seem trivial. In recent years scientists have uncovered a great deal about how man is linked to nature. Physicist Hubert Filser, renowned science journalist and passionate story-teller, has collected the bewitching and the whimsical behind our seasons and gives answers to the most delightful questions about spring, summer, autumn and winter.