"When Earth is threatened by an invading race of bugs called the Hunger, 11-year-old Finn, his arch-nemesis, Lincoln, his crush, Julep, and one pink unicorn lunchbox become Earth's last best hope against destruction"-- Provided by publisher.

In this picture 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--and adding a postscript asking what the alien might look like.

"Mr. Wuffles ignores all his cat toys but one, which turns out to be a spaceship piloted by small green aliens. When Mr. Wuffles plays rough with the little ship, the aliens must venture into the cat's territory to make emergency repairs"-- Provided by publisher.

When Sky Patel-Baum is sent to live with her mysterious uncle, she never imagines she'll end up in Area 51, a top-secret military base. Sky feels like she's landed in a whole new world, even though she hasn't left the planet. Because guess what? Area 51 is full of aliens. Lots and lots of aliens. But something even stranger is happening in Area 51--aliens are going missing. Where could they be? How come everyone thinks sky and her uncle are involved...

Fourth-grader Zack McGee's life is turned upside-down when Amp, a tiny alien, crash-lands in his bedroom, then causes trouble at school while trying to get parts to repair his spaceship.

Susan Simmons discovers that her teacher is an alien when she sees him peel off his face after class. Susan teams up with Peter, the smartest kid in their class, to halt the alien's plans to abduct the students at the school.

"Zack McGee has gotten in tons of trouble thanks to Amp, the four-inch-tall alien that crash-landed into his bedroom, but when Amp's commander, Ohm, comes to collect the stranded alien, it's Amp's turn in the hot seat!"-- Provided by publisher.

Zack and his alien buddy Amp must save the planet from an alien invasion.

"Sky Patel-Baum, Area 51's latest arrival, thought she had finally figured out her strange new home. Sure, there are aliens everywhere, and her new BFF Elvis is from the planet Galzoria. True, she just witnessed her first UFO landing. But these special visitors aren't dropping by this planet for funsies.... Nope, they're here with a warning: Area 51 is in danger! A hunk of space junk is headed right for the base! And it's not just any hunk of junk--it's...

When Jim and Charlie overhear two of their teachers talking in a secret language and the two friends set out to solve the mystery, they do not expect the dire consequences of their actions.