New York: Harper & Row, (1976) dj. Hardcover first edition - The first of the Sven Dahlgren novels, which take place on a barely habitable planet named for his father - the young four-armed Dahlgren must confront and defeat the "ergs" (man serving machines) who have seized power. He is aided in this task when a small rocket bearing five young runaways crash lands on the planet. 243 pp. ISBN: 0-060116218.

New York: Harper & Row, (1976) dj. Hardcover first edition - The first of the Sven Dahlgren novels, which take place on a barely habitable planet named for his father - the young four-armed Dahlgren must confront and defeat the "ergs" (man serving machines) who have seized power. He is aided in this task when a small rocket bearing five young runaways crash lands on the planet. 243 pp. Review copy with publisher's slip laid in. ISBN: 0-060116218.

New York: Harcourt Brace Jovanovich, (1979) dj. Hardcover first edition - Pirx is an astronaut, but a bumbling, if sometimes inspired one - in a world where space travel has become routine, things still sometimes go strangely wrong, and Pirx is assigned to find out why. Five interconnected stories in which robots develop some highly alarming human characteristics. Translated by Louis Iribarne and Michael Kandel. 220 pp. Dust jacket by Jean-Marie Troillard. ISBN: 0-15-1621381.

New York: Seabury Press, (1977). Hardcover first edition - A collection of short stories about machines which think, ranging in tone from slapstick to pathos and in mode from fantasy to realism, which probe the implications and consequences of the use of artificial intelligence. Translated from the Polish and with an introduction by Michael Kandel. xxiv, 239 pp. ISBN: 0-816492964.

New York: Ace Books, (2008.) dj. SIGNED hardcover first edition - The story of one of the last of the femmebots still operating. SIGNED on the title page. 323 pp. Wraparound dust jacket art by Joe Williamson. ISBN: 9780441015948.

New York: Ace Books, (2008.) dj. SIGNED hardcover first edition - The story of one of the last of the femmebots still operating. SIGNED on the title page with the word "Spurg!" . 323 pp. Wraparound dust jacket art by Joe Williamson. ISBN: 9780441015948.

New York: Random House, (2019). SIGNED hardcover - Humorous graphic novel for middle grade children, the fifth in this series featuring the robot from another plant, Hilo, and his friends. "Find out more about what really happened on Hilo's world before he came to earth." SIGNED on the title page. Color by Steve Hamacker. 195 pp. ISBN: 978-1524714963.