The Demon-Haunted World - Carl Sagan
The Fellowship of the Ring -- J.R.R. Tolkien
SpaceX From The Ground Up - Chris Prophet, SPACE AUTHOR
An Inquiry into the Nature and Causes of the Wealth of Nations - Adam Smith
The Origin of Species - Charles Darwin
The Unorthodox Engineers - Colin Kapp
The Final Empire - Brandon Sanderson
Selections from the Improbable Adventures of Sherlock Holmes - anthology
The Age of Reason - Thomas Paine
The King in Yellow - Robert Chambers
Project Hail Mary - Andy Weir
Blindsight - Peter Watts
Rockets and People -- Boris Chertok
Beowulf's Children - Larry Niven
Machine of Death - anthology
Beyond Earth: A Chronicle of Deep Space Exploration -- Asif A. Siddiqi
Railway Adventure - L. T. C. Rolt
The Road not Taken - Harry Turtledove
Narrow Dog to Carcassonne - Terry Darlington
The Mote in God's Eye - Larry Niven
The Difficult Road to Mars -- V. G. Perminov
Space Eldritch - anthology
Taming Liquid Hydrogen: the Centaur Upper Stage Rocket 1958-2002 -- Virginia Dawson and Mark Bowles
Backroom Boys: The Secret Return of the British Boffin - Francis Spufford
Stranger in a Strange Land - Robert A. Heinlein
The Scar - China Miéville
Making the Invisible Visible: A History of the Spitzer Infrared Telescope Facility -- Renee M. Rottner
Speaker for the Dead - Orson Scott Card
The Princess Bride - S. Morgenstern, as abridged by William Goldman
Contact - Carl Sagan
Starship Troopers -- Robert Heinlein
A Brief History of Time -- Stephen Hawking
Dune -- Frank Herbert
The Moon Is a Harsh Mistress - Robert A. Heinlein
Cosmos -- Carl Sagan
Going Postal - Terry Pratchett
The Planiverse: Computer Contact with a Two-Dimensional World - A. K. Dewdney
The Long Earth - Terry Pratchett & Stephen Baxter
Kingpin - Kevin Poulsen
Redshirts - John Scalzi
Children of Time - Adrian Tchaikovsky
The Soul of A New Machine - Tracy Kidder
The Three-Body Problem - Cixin Liu
Classical Electrodynamics -- John David Jackson
Wizardry Compiled - Rick Cook
Airframe - Michael Crichton
Cadillac Desert -- Marc Reisner
Ignition! An Informal History of Liquid Rocket Propellants - John D. Clark
most-anything from Course of Theoretical Physics -- Lev Landau and Evgeny Lifshitz (mostly)
The Kon-Tiki Expedition - Thor Heyerdahl
The Feynmann Lectures
A Canticle For Leibowitz - Walter Miller Jr.
The Martian - Andy Weir
The Communist Manifesto - Karl Marx
Red Mars - Kim Stanley Robinson
Blame! -- Tsutomu Nihei
Snow Crash - Neal Stephenson
Neuromancer -- William Gibson
Foreigner -- C.J. Cherryh
The Atrocity Archives -- Charles Stross
Fevre Dream -- George R. R. Martin
At the Mountains of Madness -- H. P. Lovecraft
Longitude -- Dava Sobel
The Iliad -- Homer
Last Chance to See -- Douglas Adams & Mark Cawardine
The Odyssey -- Homer
Driving Over Lemons: An Optimist in Andalucia -- Chris Stewart
Ringworld -- Larry Niven
The Hunt for Red October -- Tom Clancy
2010: Odyssey Two -- Arthur C. Clarke
Rainbows End -- Vernor Vinge
Ancillary Justice -- Ann Leckie
The Aeneid -- Virgil
The Lost World -- Arthur Conan Doyle
The Player of Games -- Iain M. Banks
Master and Commander -- Patrick O'Brian
Titan -- Stephen Baxter
Fundamentals of Astrodynamics -- Bates, Muller, and White
How I Killed Pluto and Why It Had It Coming -- Mike Brown
The Life and Times of Corn -- Charles Micucci
Debt: The First 5,000 Years -- David Graeber
Bullshit Jobs -- David Graeber
The Ultimate Hidden Truth of the World -- David Graeber
Endurance - Alfred Lansing
The Fate of Abraham - Peter Oborne
Britain Alone: The Path from Suez to Brexit - Phillip Stephens
We are Legion (We are Bob) - Dennis E.  Taylor
Roadside Picnic - Boris & Arkady Strugatsky
The Songs of Distant Earth - Arthur C Clarke
The Design of Everyday Things - Don Norman
The Enchiridion - Epictetus
Annihilation - Jeff Vandermeer
Diaspora - Greg Egan
Chernobyl: History of a Tragedy - Serhii Plokhy
The Clockwork Rocket - Greg Egan