4.31 avg rating — 1,476,237 ratings

"A good book, that does try to tackle the issues from a child's point of view and thinking. "

4.07 avg rating — 40,372 ratings

"A fun sci-fi book that changes its setting multiple times so the book does not get bogged down in one area. Great dialogue between characters, little time spent "in the head""

4.27 avg rating — 30,419 ratings

"A crazy adventure you think could only happen in fiction with a reverse cast of characters that all add to the story."

4.14 avg rating — 180,856 ratings

"A really good look at how society and culture can change over time. Not the Star Trek change where cars get more lights and all problems go away but dramatic changes that that change how people interact with each other and what is important."