In this beautifully illustrated book, a boy writes a letter to an imagined alien, explaining all the things he will need to know about Earth and the people who live here, what they look like, what their houses are like, what they do, along with the landscape of Earth and the many creatures who share the planet--and adding a postscript asking what the alien might look like.

"A classic of nineteenth-century French literature, this science fiction tales delves into the depths of the Earth, and by so doing, reveals the staggeringly long history of our planet"--Cover, P. [4].

An English astronomer, in company with an artilleryman, a country curate, and others, struggle to survive the invasion of earth by Martians in 1894. Thirty five million miles into space, a species of Martians sets eyes on planet earth. With their own planet doomed for destruction, the Martians prepare to invade. Their weapons are ready and their aim is ruthless. The war of the worlds is about to begin.

Carbon dioxide is out of control on Earth, and the fate of humankind rests in the paws of four experimental, untested Animal Astronauts (AlphaWolf, SmartHawk, LaserShark, and StinkBug) who are seeking another habitable planet; first destination is the Plant Planet which at first looks perfect, except that the abundant plant life can think for itself--and it thinks that it really does not like the AstroNuts.

Fifteen-year-old Daniel has followed in his parents' footsteps as the Alien Hunter, exterminating beings on The List of Alien Outlaws on Terra Firma, but when he faces his first of the top ten outlaws, the very existence of Earth and another planet are at stake.

In rural Ohio, friendships and a beautiful girl prove distracting to a fifteen-year-old who has hidden on Earth for ten years waiting to develop the Legacies, or powers, he will need to rejoin the other six surviving Garde members and fight the Mogadorians who destroyed their planet, Lorien.

In the future, bug-like aliens are taking over Earth and young Milo Silk learns through dreams and strange encounters that there are other, ancient monsters on the planet that are also threatened by the aliens, and that he may be the hero destined to lead his friends in saving the universe.

When her mother is abducted by aliens on Christmas Eve (or "Smekday" Eve since the Boov invasion), 11 year-old Tip hops in the family car and heads south to find her and meets an alien Boov mechanic who agrees to help her and save the planet from disaster.

"The boreal forest is our planet's largest land biome. A scarf around the neck of the world, it spans a dozen countries, from Canada to the mountain peaks of Japan. Parts of the biome are so remote, few humans have ever seen them. But the forest plays a vital role on our planet. It is home to an incredible diversity of species. Its trees clean our air, and its wetlands clean our water. Known as a "carbon sink," the biome plays an important role in...