羅伯特·海因萊因是美國最有影響力的科幻作傢。他以高超的敘述技巧、精巧的科幻構思、極具時代感的激進思想以及對美國曆史和文化的獨特的科幻化闡釋，贏得瞭無數讀者的喜愛，被譽為“美國現代科幻小說之父”。

海因萊因同時也是世界科幻的“三巨頭”之一。他的作品被譯成數十種語言，在世界範圍內廣泛流行，是最受中國、日本以及俄羅斯讀者歡迎的美國科幻作傢。

海因萊因著作頗豐，多次獲得各種科幻大奬，是第一位獲得世界科幻協會授予的“科幻大師”殊榮的科幻作傢。其代錶作包括《雙星》、《進入盛夏之門》、《星船傘兵》、《異鄉異客》、《嚴厲的月亮》等。

<CENTER>A classic novel from the mind of the storyteller who captures the imagination of readers from around the world, and across two generations

<FONT SIZE="+1">Science Fiction Grand Master

ROBERT A. HEINLEIN

CITIZEN OF THE GALAXY</FONT></CENTER>

In a distant galaxy, the atrocity of slavery was alive and well, and young Thorby was just another orphaned boy sold at auction. But his new owner, Baslim, is not the disabled beggar he appears to be: adopting Thorby as his son, he fights relentlessly as an abolitionist spy. When the authorities close in on Baslim, Thorby must ride with the Free Traders -- a league of merchant princes -- throughout the many worlds of a hostile galaxy, finding the courage to live by his wits and fight his way from society's lowest rung. But Thorby's destiny will be forever changed when he discovers the truth about his own identity....