The left hand of darkness by Le Guin, Ursula K
My teacher is an alien by Coville, Bruce
Out of the silent planet by Lewis, C. S
The martian chronicles by Bradbury, Ray
E.T., the extra-terrestrial
Foundation by Asimov, Isaac
Childhood's end by Clarke, Arthur C
Baloney (Henry P.) by Scieszka, Jon
Provenance by Leckie, Ann
The sunlit man by Sanderson, Brandon
Cibola burn by Corey, James S. A
Sphere by Crichton, Michael
The sparrow by Russell, Mary Doria
Persepolis rising by Corey, James S. A
Is there life in outer space? by Branley, Franklyn Mansfield
The little book of aliens by Frank, Adam
The last cuentista by Higuera, Donna Barba
Life on Mars by Getz, David
Aliens don't wear braces by Dadey, Debbie
The hitchhiker's guide to the galaxy by Adams, Douglas
The possibility of life by Green, Jaime
Life on Mars by Agee, Jon
Anathem by Stephenson, Neal
Rare earth by Ward, Peter D