Surely you constantly ask adults many questions: why do people yawn, blink or tremble from the cold, why the sky is blue, where do the clouds come from and why does it rain, why do the leaves turn yellow on some trees in autumn, and remain green on others, why does the peacock have such a large tail and why is the tiger striped. Then rather open these amazing books, because this is a real gift for why and polymaths! Reading them and looking at colorful illustrations, you can easily understand all the mysteries of the surrounding world that have interested you for so long. In addition, here you can solve many logical puzzles and tricky tasks, conduct entertaining experiments and experiments, go through exciting mazes, completing tasks that require ingenuity and ingenuity.