Hugo Awards have been given out every year since 1953, except 1954.
In 1956, it won a Hugo award for best short story.
But the fans vote the Hugo awards, and you have to be popular to win.
The book was nominated for a Hugo award in 1962.
Heinlein's four Hugo awards were all for books written before this period.
This is usually treated with the same discretion as the Hugo awards, where only two or three people might know who the guests will be.
He also received the Hugo Award three times for his work in science fiction.
Out of five Hugo Awards, this is the only one that surprised me.
He remained in that position until 1982 and won two more Hugo Awards for his work there.
The story received a nomination to the Hugo Award in 2011.