作者：艾萨克·阿西莫夫（1920-1992）

俄裔美籍作家，被全世界的读者誉为“神一样的人”；美国政府授予他“国家的资源与自然的奇迹”这个独一无二的称号，以表彰他在“拓展人类想象力”上做出的杰出贡献。

阿西莫夫是一个全知全能的作家，其著作几乎覆盖人类生活的一切方面，上天 下海、古往今来、 从恐龙到亚原子到全宇宙无所不包，从通俗小说到罗马帝国史，从科普读物到远东千年历史，从圣经指南，到科学指南，到两性生活指南，每一部著作都朴实、严谨而又充满幽默风趣的格调，为了尽情发挥自己诙谐搞笑的天赋，他甚至还写过一本《笑话集》。

到了晚年，他开始变得“好色”，出版了一系列两性话题的“黄书”。

他提出的“机器人学三定律”是当代机器人研究的基本法则，他预言了今天的生物科技，预言了互联网时代的数字图书馆，预言了人类将进行太空殖民。

终其一生，阿西莫夫最引以为豪的则是：《银河帝国》系列小说。

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译者：叶李华

一九六二年生，台湾大学电机系毕业，加州大学柏克莱分校理论物理博士，致力推广中文科幻与通俗科学二十余年，相关著作与译作数十册。自一九九○年起，即透过各种管道译介、导读及讲授阿西莫夫作品，被誉为“阿西莫夫在中文世界的代言人”。

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A millennium into the future two advancements have altered the course of human history:the colonization of the galaxy and the creation of the positronic brain.Isaac Asimov's Robot novels chronicle the unlikely partnership between a New York City detective and a humanoid robot who must learn to work together.Like most people left behind on an over-populated Earth, New York City police detective Elijah Baley had little love for either the arrogant Spacers or their robotic companions.But when a prominent Spacer is murdered under mysterious circumstances, Baley is ordered to the Outer Worlds to help track down the killer.The relationship between Life and his Spacer superiors, who distrusted all Earthmen, was strained from the start.Then he learned that they had assigned him a partner:R. Daneel Olivaw.Worst of all was that the "R" stood for robot--and his positronic partner was made in the image and likeness of the murder victim!