This is an older  Si- Fi book but it really rocks, It is a classic. Well worth the read.

I agree.  Rip roaring science fiction by a master of the genre.

One of my very favorites - it's timeless!  No one today has the talent and chutzpa that Heinlein had. :)

Cheers, Margaret

Have to agree with everyone else.  Absolutely amazing book.  Changed the way I thought about several topics.

Good book.  Not fantasy, but a good book nonetheless.

While I got it, I just didn't enjoy it the same way some of you did. Perhaps I should read it again. :)

I think you really have to have a taste for Heinlein, and be able to overlook all those stereotyped female characters.  It can really get distracting.  I frequently wish that Heinlein had just given up trying to write about women and stuck to men.