A Caldecott Honor Book by the creators of the beloved Story of Ferdinand

Wee Gillis lives in Scotland. He is an orphan, and he spends half of each year with his mother's people in the lowlands, while the other half finds him in the highlands with his father's kin. Both sides of Gillis's family are eager for him to settle down and adopt their ways. In the lowlands, he is taught to herd cattle, learning how to call them to him in even the heaviest of evening fogs. In the rocky highlands, he stalks stags from outcrop to outcrop, holding his breath so as not to make a sound. Wee Gillis...

The Nobel Prize-winning scientist's presentation of his landmark theory
According to Einstein himself, this book is intended "to give an exact insight into the theory of Relativity to those readers who, from a general scientific and philosophical point of view, are interested in the theory, but who are not conversant with the mathematical apparatus of theoretical physics." When he wrote the book in 1916, Einstein's name was scarcely known outside the physics institutes. Having just completed his masterpiece, "The General Theory of Relativity" -- which provided a brand-new theory of...