“Elegantly drawn battle scenes.”—Science Fiction Weekly

“A book that continues to resonate and influence to this day, and one whose popularity and luster hasn’t been dimmed despite decades of imitations.”—SF Reviews

“Heinlein’s genius is at its height in this timeless classic that is as meaningful today as when it was written...a fast-paced novel that never gets preachy. This is a definite must-have, must-read book.”—SF Site