Battlefield Earth by L. Ron Hubbard

This is a good book, but it is also really long.  There are all sorts of places where it feels like the story could naturally end, but Hubbard keeps going.  Luckily when he keeps going he actually has something more to say, so it's all right.  I recommended this book to my 12-year-old son, who loves fantasy and also enjoys science fiction.  He liked it so well, he has read it twice.  In this story, an alien race has taken over the earth and has been ruling it and stripping it of resources for 1000 years.  There are only a few humans left here and there in the mountains.  One of these humans, Jonnie Goodboy Tyler, ventures into the lowlands and is captured by the security chief of the Psychlos.  It is an interesting read, although don't expect it to be believable or realistic.  I really enjoyed it, so I'm going to say it is worth the time, but be aware it takes a loooong time!