"Take a world soaked in near-future strangeness and complexity... Add a beautiful alien artifact that turns out to be the spearpoint of a very dangerous, very ancient invasion... Hotwire with wisdom and wonder... Existence is as urgent and as relevant as anything by Stross or Doctorow, but with the cosmic vision of Bear or Benford. Brin is back."
—Stephen Baxter, bestselling author of Ark and The Time Ships
"In Existence, David Brin takes on one of the fundamental themes in science fiction—and what is also one of the fundamental questions humanity faces in this century. Since Brin is both a great storyteller and one of the most imaginative writers around, Existence is not to be missed."
—Vernor Vinge, bestselling author of Fire Upon the Deep and The Children of the Sky
"Existence is a book that makes you think deeply about both the future and life's most important issues. I found it fascinating and could not put it down."--Temple Grandin, author of Thinking in Pictures