Search

934 results for "Robert A. Heinlein"

The Pastures of Heaven John Steinbeck Paperback

$17.00

The Island of Doctor Moreau H. G. Wells Paperback

$13.95

The Employees: A workplace novel of the 22nd century Olga Ravn Paperback

$14.95

Grantville Gazette I (The 1632 Universe) Eric Flint Paperback

$7.99

David Falkayn: Star Trader (Technic Civilization Series #2) Poul Anderson Paperback

$7.99

The Left Hand of Darkness (Hainish Series) Ursula K. Le Guin Paperback

$10.99

Republic and Empire: Crisis, Revolution, and America's Early Independence Trevor Burnard Hardcover

$35.00

Caliban's War (Special Edition) (Expanse Series #2) James S. A. Corey Hardcover

$40.00

The Blind Spot: Why Science Cannot Ignore Human Experience Adam Frank Hardcover

$29.95

James Fenimore Cooper: Two Novels of the American Revolution (LOA #312): The Spy: A Tale of the Neutral Ground / Lionel Lincoln; or, The Leaguer of Boston James Fenimore Cooper Hardcover

$40.00

The Hammer of God: A Novel Arthur C. Clarke Paperback

$7.99

Star Names: Their Lore and Meaning Richard H. Allen Paperback

$34.95

Hegel: A Very Short Introduction Peter Singer Paperback

$12.99

Sunny: A Novel Colin O'Sullivan Paperback

$18.99

A Farewell to Arms Ernest Hemingway Paperback

$19.99

The Best American Short Stories 2025 Celeste Ng Hardcover

$30.00

Strange Planet Nathan W. Pyle Hardcover

$16.99

Downward to the Earth Robert Silverberg Paperback

$18.99

Childhood's End: A Novel Arthur C. Clarke Paperback

$18.00

Time of the Magicians: Wittgenstein, Benjamin, Cassirer, Heidegger, and the Decade That Reinvented Philosophy Wolfram Eilenberger Paperback

$25.00

Prejudices: The First, Second, and Third Series H. L. Mencken Hardcover

$37.50

The Balloonist Macdonald Harris Paperback

$16.95

The Open Society and Its Enemies Karl R. Popper Paperback

$32.00

A Farewell to Arms Ernest Hemingway Hardcover

$20.00

Polaris Rising: A Novel Jessie Mihalik Paperback

$19.99

George Orwell 2-Book Boxed Set: 1984 and Animal Farm George Orwell Paperback

$24.00

Himmler's War Robert Conroy Paperback

$7.99

The Republic Plato Paperback

$13.00

The Naked Sun Isaac Asimov Paperback

$9.00

The Biggest Ideas in the Universe: Space, Time, and Motion Sean Carroll Hardcover

$26.00

Flights of Passage: Recollections of a World War II Aviator Samuel Hynes Paperback

$27.00

Depth Charge Hank Davis Paperback

$18.00

Affairs of State Calvin James Paperback

$19.99

Brave New World Aldous Huxley Paperback

$18.99

The Fall of a Sparrow Robert Hellenga Paperback

$17.00

Spin (Hugo Award Winner) Robert Charles Wilson Paperback

$17.99

The Sun Also Rises: The Hemingway Library Edition Ernest Hemingway Paperback

$19.00

Hölderlin's Madness: Chronicle of a Dwelling Life, 1806-1843 Giorgio Agamben Paperback

$21.00

Alien Race: Visual Development of an Intergalactic Adventure Peter Chan Hardcover

$59.95

The Faith of Beasts James S. A. Corey Hardcover

$32.00

Humanocracy, Updated and Expanded: Creating Organizations as Amazing as the People Inside Them Gary Hamel Hardcover

$32.00

Under Alien Skies: A Sightseer's Guide to the Universe Philip Plait Ph.D. Paperback

$18.99

Space Oddity Catherynne M. Valente Hardcover

$28.99

Stand on Zanzibar John Brunner Paperback

$24.99

A Liaden Universe Constellation: Volume I Sharon Lee Paperback

$15.00

One More for the Road: A New Story Collection Ray Bradbury Paperback

$9.99

Thirteen Days: A Memoir of the Cuban Missile Crisis Robert F. Kennedy Paperback

$15.95

Out of the Silent Planet (Space Trilogy Series #1) C. S. Lewis Paperback

$17.99

Far from the Light of Heaven Tade Thompson Paperback

$21.99

A Traveler's Guide to the Stars Les Johnson Paperback

$19.95

Planetside Michael Mammay Paperback

$9.99

The Spare Man Mary Robinette Kowal Paperback

$19.99

BUILDING THE H BOMB: A PERSONAL HISTORY Kenneth W Ford Paperback

$27.50

Starborn: How the Stars Made Us (and Who We Would Be Without Them) Roberto Trotta Hardcover

$30.00

The Cybernetic Society: How Humans and Machines Will Shape the Future Together Amir Husain Hardcover

$30.00

The American Way: A True Story of Nazi Escape, Superman, and Marilyn Monroe Helene Stapinski Paperback

$18.99

The Old Man and the Sea (Pulitzer Prize Winner) (The Hemingway Library Edition) Ernest Hemingway Paperback

$17.00

Literary Theory for Robots: How Computers Learned to Write Dennis Yi Tenen Hardcover

$22.00

Enigma Tales Una McCormack Paperback

$10.99

The Shape of Things to Come H. G. Wells Paperback

$20.00

Making Contact: Preparing for the New Realities of Extraterrestrial Existence Alan Steinfeld Paperback

$19.00

The Unlikely Intrusion of Adams Klein John Greco Paperback

$14.99

The Mercy of Gods James S. A. Corey Paperback

$19.99

Outer Space Ken Jennings Hardcover

$19.99

Nuclear Forces: The Making of the Physicist Hans Bethe Silvan S. Schweber Hardcover

$42.00

Chasing Captain America: How Advances in Science, Engineering, and Biotechnology Will Produce a Superhuman Paul Zehr Paperback

$15.95

UFOs and the National Security State: Chronology of a Cover-Up: 1941-1973 Richard M. Dolan Paperback

$38.95

The Deluge Stephen Markley Paperback

$23.99

The Astrochimps: America's First Astronauts Dawn Cusick Paperback

$12.99

Alien Clay Adrian Tchaikovsky Paperback

$19.99

The Story of Astrophysics in Five Revolutions Ersilia Vaudo Hardcover

$23.99

The Spectacular Science of Space: From rockets and rovers to supergiant stars Rob Colson Hardcover

$17.99

Mission to Iran William H. Sullivan Paperback

$24.99

A Disturbance of Fate: The Presidency of Robert F. Kennedy Mitchell J Freedman Paperback

$37.00

Henry, Himself: A Novel Stewart O'Nan Paperback

$24.00

The Beauty of Humanity Movement: A Novel Camilla Gibb Paperback

$24.00

I'm Working on That (Star Trek Series): A Trek from Science Fiction to Science Fact William Shatner Paperback

$24.99

Godkiller: A Novel Hannah Kaner Paperback

$18.99

A Computer Called Katherine: How Katherine Johnson Helped Put America on the Moon Suzanne Slade Hardcover

$18.99

A Farewell to Arms: (Penguin Classics Deluxe Edition) Ernest Hemingway Paperback

$18.00

The Age of Em: Work, Love, and Life when Robots Rule the Earth Robin Hanson Paperback

$17.99

Distant Star Roberto Bolaño Paperback

$17.00

Man in the Dark Paul Auster Paperback

$17.00

Great Ideas The Horrors And Absurdities Of Religion Schopenhauer Arthur Paperback

$11.00

Becoming Utopian: The Culture and Politics of Radical Transformation Tom Moylan Paperback

$42.95

Red Dwarf Boxed Set Robert Stetson Paperback

$39.95

Republic, Volume II: Books 6-10 Plato Hardcover

$30.00

George Marshall: Defender of the Republic David L. Roll Paperback

$24.00

Sunward: A Novel William Alexander Paperback

$18.00

The Possibility of Life: Science, Imagination, and Our Quest for Kinship in the Cosmos Jaime Green Hardcover

$32.99

Babylon's Ashes (Expanse Series #6) James S. A. Corey Hardcover

$30.00

The World Without Us Alan Weisman Paperback

$21.00

The End Times: Fall of Empires Phil Kelly Paperback

$21.00

Einstein and the Quantum: The Quest of the Valiant Swabian A. Douglas Stone Paperback

$23.95

The Moon Is Down John Steinbeck Paperback

$16.00

"What Do You Care What Other People Think?": Further Adventures of a Curious Character Richard P. Feynman Paperback

$15.95

Space Age Adventures: Over 100 Terrestrial Sites and Out of This World Stories Mike Bezemek Paperback

$27.95

Adventures of Huckleberry Finn Mark Twain Paperback

$9.00

Red Moon Kim Stanley Robinson Paperback

$19.99

Apollo 8: The Thrilling Story of the First Mission to the Moon Jeffrey Kluger Paperback

$19.99

Curious George Gets a Medal H. A. Rey Hardcover

$19.99

The Myth of Race: The Troubling Persistence of an Unscientific Idea Robert Wald Sussman Paperback

$23.00

The Green Child Herbert Read Paperback

$15.95

Law and Literature: Third Edition Richard A. Posner Paperback

$33.50

Who Will You Save? Gareth L. Powell Paperback

$18.99

It Can't Happen Here Sinclair Lewis Paperback

$20.00

Libra Don DeLillo Paperback

$20.00

Ada and the Galaxies Alan Lightman Paperback

$8.99

The Island of Doctor Moreau H. G. Wells Paperback

$9.99

A. J. Liebling: The Sweet Science and Other Writings (LOA #191): The Sweet Science / The Earl of Louisiana / The Jollity Building / Between Meals/ The Press A.J. Liebling Hardcover

$40.00

The Allure of the Multiverse: Extra Dimensions, Other Worlds, and Parallel Universes Paul Halpern Hardcover

$30.00

The Subversive Simone Weil: A Life in Five Ideas Robert Zaretsky Paperback

$15.00

The Structure of Scientific Revolutions: 50th Anniversary Edition Thomas S. Kuhn Paperback

$18.00

I Am a Part of Infinity: The Spiritual Journey of Albert Einstein Kieran Fox Hardcover

$30.00

Floating Hotel Grace Curtis Paperback

$20.00

The American Short Story: The Nineteenth Century, Volume 2 (LOA #395) John Stauffer Hardcover

$42.50

Galileo: And the Science Deniers Mario Livio Hardcover

$28.00

Space Cat Ruthven Todd Hardcover

$16.95

The Rise and Fall of Rational Control: The History of Modern Political Philosophy Harvey C. Mansfield Hardcover

$35.00

2034 Elliot Ackerman Paperback

$18.00

The Year of the Hare: A Novel Arto Paasilinna Paperback

$18.00

Moon Palace Paul Auster Paperback

$18.00

Humanoid Robots: Running into the Future Kathryn Clay Paperback

$8.99

Shoot for the Moon: The Space Race and the Extraordinary Voyage of Apollo 11 James Donovan Paperback

$24.99

A Little History of Science William Bynum Paperback

$15.00

A Brief History of Time: From the Big Bang to Black Holes Stephen Hawking Paperback

$22.00

After Humanity: A Guide to C.S. Lewis's "The Abolition of Man" Michael Ward Hardcover

$24.95

Life, the Universe and Everything (Hitchhiker's Guide Series #3) Douglas Adams Paperback

$21.00

Outer Space Ken Jennings Paperback

$7.99

The Space Launch System: NASA's Heavy-Lift Rocket and the Artemis I Mission Anthony Young Paperback

$37.99

The First Cat in Space 3-Book Box Set: A Graphic Novel Collection: The First Cat in Space Ate Pizza, The First Cat in Space and the Soup of Doom, The First Cat in Space and the Wrath of the Paperclip Mac Barnett Paperback

$34.97

The Fourth Consort: A Novel Edward Ashton Hardcover

$29.00

Eleven Percent: A Novel Maren Uthaug Hardcover

$29.00

The Skeptics' Guide to the Future: What Yesterday's Science and Science Fiction Tell Us About the World of Tomorrow Steven Novella Paperback

$19.99

The Man Who Cried I Am: A Novel John A. Williams Paperback

$19.95

Disneyland and the Rise of Automation: How Technology Created the Happiest Place on Earth Roland Betancourt Hardcover

$35.00

Prequel: An American Fight Against Fascism Rachel Maddow Large Print

$34.00

The New Lunar Society: An Enlightenment Guide to the Next Industrial Revolution David A. Mindell Hardcover

$32.95

Upright Women Wanted Sarah Gailey Hardcover

$21.99

Einstein's God: Conversations About Science and the Human Spirit Krista Tippett Paperback

$27.00

Dancing with Destruction Jason Cordova Paperback

$18.00

Tripping on Utopia: Margaret Mead, the Cold War, and the Troubled Birth of Psychedelic Science Benjamin Breen Hardcover

$30.00

Hell and Other Destinations: A 21st-Century Memoir Madeleine Albright Paperback

$18.99

Moon of the Turning Leaves: A Novel Waubgeshig Rice Paperback

$18.99

Star Shipped: A Novel Cat Sebastian Paperback

$18.99

An Astronaut's Guide to Life on Earth: What Going to Space Taught Me About Ingenuity, Determination, and Being Prepared for Anything Chris Hadfield Paperback

$21.99

The Anthropic Cosmological Principle John D. Barrow Paperback

$35.99

For Whom the Bell Tolls Ernest Hemingway Paperback

$21.00

Operation Paperclip: The Secret Intelligence Program that Brought Nazi Scientists to America Annie Jacobsen Paperback

$24.99

The Five-Million-Year Odyssey: The Human Journey from Ape to Agriculture Peter Bellwood Hardcover

$34.00

The Five-Million-Year Odyssey: The Human Journey from Ape to Agriculture Peter Bellwood Paperback

$22.95

The Hero (Human-Posleen War Series #5) John Ringo Paperback

$7.99

The Human Condition: Second Edition Hannah Arendt Paperback

$26.00

Helen Keller: A Life Dorothy Herrmann Paperback

$26.00

The Best Science Fiction and Fantasy of the Year, Volume 7 Jonathan Strahan Paperback

$19.99

Lives of Bitter Rain: A Tyrant Philosophers Novella Adrian Tchaikovsky Hardcover

$24.99

The Blind Spot: Why Science Cannot Ignore Human Experience Adam Frank Paperback

$24.95

Phenomenology of Spirit G. W. F. Hegel Paperback

$23.99

The Man Who Mapped Consciousness: The Life and Legacy of Dr. David R. Hawkins, The Authorized Biography Susan Hawkins Paperback

$17.99

The Wall Marlen Haushofer Paperback

$17.95

Perfectly Reasonable Deviations from the Beaten Track: The Letters of Richard P. Feynman Richard P. Feynman Paperback

$21.99

State and Revolution: Fully Annotated Edition V. I. Lenin Paperback

$16.95

The Starlight Watchmaker Wren James Paperback

$9.99

Bloodchild and Other Stories Octavia E. Butler Paperback

$14.00

The Houdini Club: The Epic Journey and Daring Escapes of the First Army Rangers of WWII Mir Bahmanyar Hardcover

$32.99

The Singularities: A novel John Banville Paperback

$18.00

Dirk Gently's Holistic Detective Agency (Dirk Gently Series #1) Douglas Adams Paperback

$17.99

Heinrich Himmler: The Sinister Life of the Head of the SS and Gestapo Roger Manvell Paperback

$16.99

The New Science of the Enchanted Universe: An Anthropology of Most of Humanity Marshall Sahlins Paperback

$20.95

The Abduction of Betty and Barney Hill: Alien Encounters, Civil Rights, and the New Age in America Matthew Bowman Paperback

$22.00

Life: A Journey through Science and Politics Paul R. Ehrlich Paperback

$22.00

HumanKind: Changing the World One Small Act at a Time Brad Aronson Paperback

$15.99

Across the Airless Wilds: The Lunar Rover and the Triumph of the Final Moon Landings Earl Swift Paperback

$17.99

Happy Bad: A Novel Delaney Nolan Hardcover

$26.00

The Martians: The True Story of an Alien Craze that Captured Turn-of-the-Century America David Baron Hardcover

$29.99

Mavericks of the Mind David Jay Brown Paperback

$29.00

The American Short Story: The Nineteenth Century, Volume 1 (LOA #394) John Stauffer Hardcover

$42.50

Trotsky: A Biography Robert Service Paperback

$30.00

Free for All Patrick Horvath Hardcover

$19.99

Turing: Pioneer of the Information Age B. Jack Copeland Paperback

$21.99

The Doomsday Book: The Science Behind Humanity's Greatest Threats Marshall Brain Hardcover

$27.95

The Unlonely Planet Martin R Oliver Paperback

$14.49

Moonbound: A Novel Robin Sloan Paperback

$19.00

Redeeming the Great Emancipator Allen C. Guelzo Hardcover

$42.00

HIM Geoff Ryman Paperback

$18.99

The Logic of Scientific Discovery Karl Popper Paperback

$40.99

Himmler: Hitler's Henchman Ian Baxter Paperback

$26.95

Last Call for Liberty: How America's Genius for Freedom Has Become Its Greatest Threat Os Guinness Paperback

$30.99

Collected Shorter Fiction of Leo Tolstoy, Volume II: Introduction by John Bayley Leo Tolstoy Hardcover

$36.00

Shangri-La Mathieu Bablet Paperback

$24.99

A Man Without a Country: 20th Anniversary Edition Kurt Vonnegut Hardcover

$29.95

The Chaneysville Incident: A Novel David Bradley Paperback

$18.99

A Simple Habana Melody: A Novel Oscar Hijuelos Paperback

$18.99

Memoirs of a Space Traveler: Further Reminiscences of Ijon Tichy Stanislaw Lem Paperback

$18.95

Hidden in the Heavens: How the Kepler Mission's Quest for New Planets Changed How We View Our Own Jason Steffen Hardcover

$29.95

Beautyland: A Novel Marie-Helene Bertino Paperback

$18.00

When We Cease to Understand the World Benjamín Labatut Paperback

$17.95

Hacking Darwin: Genetic Engineering and the Future of Humanity Jamie Metzl Paperback

$17.99

The Star of Moon Village Jennifer Ann Richter Hardcover

$17.99

Space Opera Catherynne M. Valente Paperback

$18.99

Abaddon's Gate (Expanse Series #3) James S. A. Corey Paperback

$21.99

Joanna Russ: Novels & Stories (LOA #373): The Female Man / We Who Are About To . . . / On Strike Against God / The Complete Alyx Stories / Other Stories Joanna Russ Hardcover

$37.50

Prejudices: The Fourth, Fifth, and Sixth Series H. L. Mencken Hardcover

$35.00

The Assistant Robert Walser Paperback

$18.95

The Hydrogen Sonata (Culture Series #9) Iain M. Banks Paperback

$19.99

Leonardo da Vinci Diego Agrimbau Hardcover

$34.65

When the Moon Hits Your Eye John Scalzi Hardcover

$29.99

J.r.r. Tolkien: Author of the Century Tom Shippey Paperback

$22.99

General Relativity: The Theoretical Minimum Leonard Susskind Paperback

$21.99

Bonnie's Rocket Emeline Lee Hardcover

$20.95

Failure Is Not an Option: Mission Control From Mercury to Apollo 13 and Beyond Gene Kranz Paperback

$21.00

Children of Memory (Children of Time Series #3) Adrian Tchaikovsky Paperback

$19.99

Robo-Sauce Adam Rubin Hardcover

$19.99

Born of the Sun: Adventures in Our Solar System Mike Ashley Paperback

$15.99

A Separate Peace John Knowles Paperback

$17.99

The Academy: A Novel Elin Hilderbrand Large Print

$32.00

I Told You So!: Scientists Who Were Ridiculed, Exiled, and Imprisoned for Being Right Matt Kaplan Hardcover

$30.00

Coming Up Short: A Memoir of My America Robert B. Reich Hardcover

$30.00

The Best American Science and Nature Writing 2023 Carl Zimmer Paperback

$18.99

The E.M.M.A. Effect: A Novel Lia Riley Paperback

$18.99

The Godless Constitution and the Providential Republic Steven D. Smith Hardcover

$32.99

Hannah's War Jan Eliasberg Paperback

$16.99

The Immeasurable Heaven: Nominated for the 2026 Philip K. Dick Award! Caspar Geon Paperback

$16.99

The Little Book of Humanism: Universal lessons on finding purpose, meaning and joy Andrew Copson Hardcover

$17.99

The Human Use of Human Beings: Cybernetics and Society Norbert Wiener Paperback

$18.99

The Million Year Picnic And Other Stories Will Elder Hardcover

$29.99

The Physics of Star Trek Lawrence M. Krauss Paperback

$18.99

The Winter of Our Discontent John Steinbeck Paperback

$18.00

Battlegrounds: The Fight to Defend the Free World H. R. McMaster Paperback

$21.99

A.D. After Disclosure: When the Government Finally Reveals the Truth About Alien Contact Richard Dolan Paperback

$21.95

Record of a Spaceborn Few (Wayfarers Series #3) Becky Chambers Hardcover

$26.99

Homeland and Other Stories Barbara Kingsolver Paperback

$17.99

Warfare + Civil War Alex Garland Paperback

$28.95

Impossible Escape: A True Story of Survival and Heroism in Nazi Europe Steve Sheinkin Hardcover

$19.99

Moonwalking with Einstein: The Art and Science of Remembering Everything Joshua Foer Hardcover

$30.00

Soul of a People: The WPA Writers' Project Uncovers Depression America David A. Taylor Paperback

$15.99

Alien: Cult Gavin G. Smith Paperback

$18.99

Jitterbug Gareth L. Powell Paperback

$18.99

Watership Down: A Novel Richard Adams Paperback

$19.99

Herland and Selected Stories Charlotte Perkins Gilman Paperback

$7.95

A Brief Welcome to the Universe: A Pocket-Sized Tour Neil deGrasse Tyson Paperback

$14.95

Why Not Socialism? Gerald A. Cohen Hardcover

$14.95

Resisting AI: An Anti-fascist Approach to Artificial Intelligence Dan McQuillan Paperback

$32.95

CRISPR People: The Science and Ethics of Editing Humans Henry T. Greely Paperback

$24.95

Homeland Elegies: A Novel Ayad Akhtar Paperback

$16.99

A Giant Leap: How AI Is Transforming Healthcare and What That Means for Our Future Robert Wachter Hardcover

$32.00

Space Chasers by Leland Melvin Leland Melvin Paperback

$14.99

Dayswork: A Novel Chris Bachelder Paperback

$17.99

Notes on Infinity: A Novel Austin Taylor Hardcover

$29.99

Her First American: A Novel Lore Segal Paperback

$19.99

Colfax Ave.

2526 E Colfax Avenue Denver, CO

Aspen Grove

7301 S Santa Fe Drive Littleton, CO

Stanley Marketplace

2501 Dallas St. Suite 144 Aurora, CO

Union Station

1701 Wynkoop Street Denver, CO