¿Qué causó la guerra de Secesión? (What Caused the Civil War?)

Readers will set their eyes to the night sky in this fascinating book about astronomers. This volume is a perfect combination between STEM and career guidance as it introduces readers to the different ways astronomers use science, technology, engineering, and math in their work every day. Readers will love learning about celestial bodies and space phenomena, as well as the different processes and equipment astronomers use to observe, collect, and analyze data. This book also covers the steps a person can take to become an astronomer. The curriculum-based information in this book is conveyed...

Born in 1452, Leonardo da Vinci is still, today, considered one of the most talent people to have ever lived. From his world famous paintings and drawings, such as the Mona Lisa and the Vitruvian Man, to his ingenious inventions of the parachute, the helicopter, and the military tank, da Vince was always a step ahead of his time. Discover the origins of a man who refused to be defined by just one vocation. Whether science and engineering or architecture and art, Leonardo da Vinci was the ultimate Renaissance Man.

Invites young readers to learn to count in English and Spanish as they search for the right place to put the reusable stickers.

Libro para auténticos fans, con extractos de los cómics originales, animaciones con tintas metálicas y fichas de personajes. Peter Parker pasa de ser un tímido empollón a tu amistoso vecino arácnido. Además, serás testigo de los enfrentamientos con sus mayores enemigos: el Doctor Octopus, el Duende Verde y el Hombre de Arena. Con textos de Stan Lee, el creador de Spider-Man, y dibujos de Steve Ditko y John Romita, sus más importantes ilustradores.