Recommendations based on Citizen of the Galaxyby Robert A. Heinlein

* statistically, based on millions of data-points provided by fellow humans

  1. The Moon Is a Harsh Mistress

    by Robert A. Heinlein
    Revolutionary group fight for freedom from an oppressive lunar colony.

    In 2075, the Moon (Luna) is used as a penal colony by Earth's government, with three million inhabitants (called "Loonies") living in underground cities. Most Loonies are criminals, political exiles, ... (Wikipedia)

  2. Have Space Suit—Will Travel

    by Robert A. Heinlein
    An adventurous teenager embarks on a thrilling space mission to save the future of the human race.

    The novel is set in the near future, when the Earth has established a few small scientific bases on the Moon. Clifford "Kip" Russell, enters an advertising jingle writing contest, hoping to win an ... (Wikipedia)

  3. Tunnel in the Sky

    by Robert A. Heinlein
    A group of students are stranded on a distant planet during a survival test, facing challenges and forming their own society.

    A classic novel from the mind of the storyteller who captures the imagination of readers from around the world, and across two generations. The final exam for Dr. Matson's Advanced Survival class was ... (Goodreads)

  4. The Mote in God's Eye

    by Larry Niven
    A journey of first contact between the human race and an alien species.

    In the year AD 3017, humanity is slowly recovering from an interstellar civil war that tore apart the first Empire of Man. The Second Empire is busy establishing control over the remnants of its ... (Wikipedia)

  5. Foundation

    by Isaac Asimov
    Exploring the possibilities of a galactic empire in a future driven by science and technology.

    For twelve thousand years the Galactic Empire has ruled supreme. Now it is dying. But only Hari Seldon, creator of the revolutionary science of psychohistory, can see into the future – to a dark age ... (Goodreads)

  6. Mirror Dance

    by Lois McMaster Bujold
    A genetically-engineered clone confronts his identity and struggles to overcome destiny.

    Mark, Miles Vorkosigan 's clone , masquerades as him and dupes his mercenary force, the Dendarii, into undertaking a mission to free clones held "prisoner" on Jackson's Whole, an anything-goes ... (Wikipedia)

  7. The Naked Sun

    by Isaac Asimov
    A detective investigates a murder on a distant planet, uncovering a sinister conspiracy.

    The story arises from the murder of Rikaine Delmarre, a prominent "fetologist" (fetal scientist), responsible for the operation of the planetary birthing center of Solaria , a planet politically ... (Wikipedia)

  8. Storm Front

    by Jim Butcher
    A wizard detective investigates a mysterious magical murder in modern Chicago.

    Dresden is hired by a Monica Sells to find her husband Victor Sells, an amateur magician who has been acting oddly. Later that day, he gets a call from Lieutenant Karrin Murphy, director of the ... (Wikipedia)

  9. Captain Vorpatril's Alliance

    by Lois McMaster Bujold
    An action-packed adventure of a career soldier who is reluctantly caught in a web of political intrigue.

    During a stay in the planet Komarr, Captain Ivan Vorpatril is recruited by Byerly Vorrutyer, an undercover agent of Imperial Security, to find out the identity of a young woman named Tej, connected ... (Wikipedia)

  10. A Civil Campaign

    by Lois McMaster Bujold
    Miles Vorkosigan navigates the tricky waters of romance and politics in a comedic space opera.

    Miles Vorkosigan has a problem: unrequited love for the beautiful widow Ekaterin Vorsoisson, violently allergic to marriage after her first exposure. If a frontal assault won't do, Miles thinks, try ... (Goodreads)

  11. The Stars My Destination

    by Alfred Bester
    A man's quest for revenge in an intergalactic society, using teleportation and telepathy.

    At the time when the book is set, "jaunting"—personal teleportation—has so upset the social and economic balance that the Inner Planets are at war with the Outer Satellites. Gully Foyle of the ... (Wikipedia)

  12. Strong Poison

    by Dorothy L. Sayers
    A murder mystery novel combining romance and suspense as a woman is accused of poisoning her lover.

    The novel opens with mystery author Harriet Vane on trial for the murder of her former lover, Phillip Boyes: a writer with strong views on atheism, anarchy, and free love . Publicly professing to ... (Wikipedia)

  13. Whose Body?

    by Dorothy L. Sayers
    A murder mystery, as an aristocrat's body is found in the bathtub of an architect.

    Thipps, an architect, finds a dead body wearing nothing but a pair of pince-nez in the bath of his London flat. Lord Peter Wimsey—a nobleman who has recently developed an interest in criminal ... (Wikipedia)

  14. 2001: A Space Odyssey

    by Arthur C. Clarke
    An interstellar journey of exploration, confronting humanity's place in the universe.

    A mysterious alien civilization uses a tool with the appearance of a large crystalline monolith to investigate worlds across the galaxy and, if possible, to encourage the development of intelligent ... (Wikipedia)

  15. Startide Rising

    by David Brin
    A group of uplifted dolphins and humans must flee across the galaxy, pursued by enemies seeking their advanced technology.

    In the year 2489 C.E. , , the Terran spaceship Streaker — crewed by 150 uplifted dolphins, seven humans, and one uplifted chimpanzee — discovers a derelict fleet of 50,000 spaceships the size of ... (Wikipedia)

  16. The Uplift War

    by David Brin
    A story of a species of aliens fighting to survive against a powerful oppressor.

    David Brin's Uplift novels are among the most thrilling and extraordinary science fiction ever written. Sundiver, Startide Rising, and The Uplift War –a New York Times bestseller--together make up ... (Goodreads)

  17. Way Station

    by Clifford D. Simak
    A man living in a remote Wisconsin town discovers a secret gateway to other worlds.

    Enoch Wallace, an American Civil War veteran, is chosen by an alien to administer a way station for interplanetary travel. His job is to monitor the machinery of the way station and make sure arrival ... (Wikipedia)

  18. The Forever War

    by Joe Haldeman
    A soldier's story of the horror of war and its consequences in the far future.

    The monumental Hugo and Nebula award winning SF classic— Featuring a new introduction by John Scalzi,The Earth's leaders have drawn a line in the interstellar sand—despite the fact that the fierce ... (Barnes & Noble)

  19. Ringworld

    by Larry Niven
    A sci-fi adventure to an artificial ring-shaped world, full of unexpected challenges.

    On planet Earth in 2850 AD , Louis Gridley Wu is celebrating his 200th birthday. Despite his age, Louis is in perfect physical condition due to the longevity drug boosterspice . He meets Nessus , a ... (Wikipedia)

  20. Timescape

    by Gregory Benford
    Scientists send a message back in time to warn of ecological disaster, but the message may not be received in time to prevent it.

    The story is written from two viewpoints, equidistant from the novel's publication in 1980. The first thread is set in a 1998 ravaged by ecological disasters such as algal blooms and diebacks on the ... (Wikipedia)

  21. Dragonflight

    by Anne McCaffrey
    A young dragonrider embarks on a mission to save her kingdom from a mysterious threat.

    Dragonflight is the story of Lessa , the sole survivor of the noble ruling family of Ruatha Hold on the northern continent of Pern. When the rest of her family is killed by a cruel usurper, Fax , she ... (Wikipedia)

  22. The Foundation Trilogy

    by Isaac Asimov
    Intergalactic future-history saga of a Galactic Empire on the brink of collapse.

    A THOUSAND-YEAR EPIC, A GALACTIC STRUGGLE, A MONUMENTAL WORK IN THE ANNALS OF SCIENCE FICTION FOUNDATION begins a new chapter in the story of man's future. As the Old Empire crumbles into barbarism ... (Goodreads)

  23. Footfall

    by Larry Niven
    Aliens invade Earth, and humanity must fight back to save their planet from destruction.

    The alien Fithp resemble baby elephants with multiple prehensile trunks. They possess more advanced technology than humans but have developed none of it on their own. In the distant past on their ... (Wikipedia)

  24. Neverwhere

    by Neil Gaiman
    A mysterious journey through a hidden realm of London, filled with danger and unexpected allies.

    Neverwhere is the story of Richard Mayhew and his trials and tribulations in London. At the start of the story, he is a young businessman, recently moved from Scotland and with a normal life ahead. ... (Wikipedia)

  25. Callahan's Crosstime Saloon

    by Spider Robinson
    A collection of short stories set in a bar where the patrons are eccentric and the bartender is a time traveler.

    Callahan's Place is the neighborhood tavern to all of time and space, where the regulars are anything but. Pull up a chair, grab a glass of your favorite, and listen to the stories spun by time ... (Goodreads)

  26. Watership Down

    by Richard Adams
    A group of rabbits embark on a treacherous journey to find a new home.

    In the Sandleford warren , ,[b], Fiver, a young runt rabbit who is a seer , receives a frightening vision of his warren's imminent destruction. , When he and his brother Hazel fail to convince their ... (Wikipedia)

  27. Forever Peace

    by Joe Haldeman
    In a future world, soldiers use telepathy to fight wars. A group of scientists discovers a way to end all wars, but at a great cost.

    Though its title is similar to, The Forever War, and both novels deal with soldiers in the future, Forever Peace is not a direct sequel, and takes place on a different future of Earth in the year ... (Wikipedia)

  28. The Time Machine

    by H.G. Wells
    A scientist travels through time, discovering the future of mankind.

    The book's protagonist is a Victorian English scientist and gentleman inventor living in Richmond , Surrey , identified by a narrator simply as the Time Traveller . Similarly, with but one exception ... (Wikipedia)

  29. Dirk Gently's Holistic Detective Agency

    by Douglas Adams
    An eccentric detective's surreal journey through time and space to solve a mysterious case.

    Richard MacDuff attends the Coleridge dinner at his old college St Cedd's , where he witnesses his former tutor, Professor Urban "Reg" Chronotis , perform an inexplicable magic trick in which he ... (Wikipedia)

  30. Dragonquest

    by Anne McCaffrey
    A group of brave adventurers traverse a world of dragons and magical powers in search of a powerful artifact.

    As it opens, tensions are rising between the Oldtimers, those dragonriders who came forward in time 400 turns (Pernese years) to help the undermanned contemporary dragonriders protect the planet Pern ... (Wikipedia)