• R.U.R. (Rossum's Universal Robots)
• The Makropulos Affair
• The Absolute at Large
• Krakatit
• War with the Newts (dystopian satire)

• The Mother
• The White Disease (earlier translated as Power and Glory)

• Stories from a Pocket and Stories from Another Pocket (Povídky z jedné a z druhé kapsy) - a common name for a cycle of short detective stories (5-10 pages long) that shared common attitude and characters, including The Last Judgement.
• How it is Made - satiric novels on the life of theatre, newspaper and film studio.
• The Gardener's Year (Zahradníkův Rok, 1929) is exactly what it says, a year-round guide to gardening, charmingly written, with illustrations by his brother Josef Čapek.
• Pictures from the Insects' Life, also known as Insect Play, with Josef Čapek, a satire in which insects stand in for various human characteristics: the flighty, vain butterfly, the obsequious, self serving dung beetle.
• Apocryphal Stories (Kniha apokryfů), short stories about literary and historical characters, such as Hamlet, a struggling playwright, Don Juan, Alexander arguing with his teacher Aristotle, and Sarah and Abraham attempting to name ten good people so Sodom can be saved: "What do you have against Namuel? He's stupid but he's pious."
• Nine Fairy Tales: And One More Thrown in for Good Measure (Devatero Pohádek a ještě jedna od Josefa Čapka jako přívažek, 1932)
• Dashenka, or the Life of a Puppy (Dášenka čili Život štěněte, 1933)

• The Chronic Argonauts (1888)
  
• Textbook of Biology (1893) (revised in 1898 as Textbook of Zoology)
  
• Honours Physiography, co-written with R. A. Gregory, (1893)
  
• Select Conversations with an Uncle (now extinct) (1895)
  
• The Time Machine: An Invention (1895)*
  
• The Wonderful Visit (1895)
  
• The Stolen Bacillus and Other Incidents (1895)*
  
• The Argonauts of the Air (1895)
  
• Under the Knife (1896)
  
• In The Abyss (1896)
  
• The Island of Doctor Moreau (1896)*
  
• The Red Room (1896)*
  
• The Wheels of Chance: A Bicycling Idyll (1896)*
  
• The Sea Raiders (1896)
  
• The Crystal Egg (1897)
  
• The Star (1897)
  
• A Story of the Stone Age (1897)
  
• The Plattner Story, and Others (1897)
  
• The Invisible Man: A Grotesque Romance (1897)*
  
• Certain Personal Matters: A Collection of Material, Mainly Autobiographical (1898)
  
• The War of the Worlds (1898)*
  
• The Man Who Could Work Miracles (1898)
  
• When the Sleeper Wakes (1899) (later revised as The Sleeper Awakes, 1910)*
  
• Tales of Space and Time (1899)
  
• A Story of the Days To Come (1899)
  
• Love and Mr Lewisham: The Story of a Very Young Couple (1900)*
  
• The First Men in the Moon (1901)*
  
• Filmer (1901)
  
• The New Accelerator (1901)
  
• Anticipations of the Reaction of Mechanical and Scientific Progress upon Human Life and Thought (1902)
  
• The Discovery of the Future (1902)
  
• The Sea Lady: A Tissue of Moonshine (1902)
  
• Mankind in the Making (1903)*
  
• The Magic Shop (1903)*
  
• Twelve Stories and a Dream (1903)
  
• The Truth About Pyecraft (1903)
  
• The Food of the Gods and How It Came to Earth (1904)*
  
• The Land Ironclads (1904)
  
• Kipps: The Story of a Simple Soul (1905)
  
• A Modern Utopia (1905)*
  
• The Empire of the Ants (1905)
  
• In the Days of the Comet (1906)*
  
• The Future in America: A Search After Realities (1906)
  
• Faults of the Fabian (1906)
  
• Socialism and the Family (1906)
  
• Reconstruction of the Fabian Society (1906)
  
• This Misery of Boots (1907), reprinted from the Independent Review, Dec. 1905.
  
• Will Socialism Destroy the Home? (paper, written in 1907)
  
• New Worlds for Old (1908)
  
• The War in the Air (1908)*
  
• First and Last Things: A Confession of Faith and Rule of Life (1908)*
  
• The Valley of Spiders (1909)
  
• Ann Veronica (1909)*
  
• Tono-Bungay (1909)*
  
• The History of Mr. Polly (1910)*
  
• The Sleeper Awakes (1910)* - Revised edition of When the Sleeper Wakes 1899
  
• The Late Mr Elvesham (1911)
  
• The New Machiavelli (1911)*
  
• The Country of the Blind and Other Stories (1911)*
  
• The Door in the Wall and Other Stories (1911)
  
• Floor Games (1911)*
  
• The Great State: Essays in Construction (U.S. title: Socialism and the Great State: Essays in Construction) (edited by Wells, G. R. S. Taylor and Lady Warwick (1912)
  
• The Labour Unrest (1912)
  
• Marriage (1912)
  
• War and Common Sense (1913)
  
• Liberalism and Its Party: What Are the Liberals to Do? (1913)
  
• Little Wars: A Game for Boys from Twelve Years of Age to One Hundred and Fifty and for that More Intelligent Sort of Girls who Like Boys' Games and Books (1913)
  
• The Passionate Friends: A Novel (1913)
  
• An Englishman Looks at the World: Being A Series of Unrestrained Remarks upon Contemporary Matters (U.S. title: Social Forces in England and America) (1914)
  
• The World Set Free: A Story of Mankind (1914)
  
• The Wife of Sir Isaac Harman (1914)
  
• The War That Will End War (1914)
  
• The Peace of the World (1915)
  
• Boon, The Mind of the Race, The Wild Asses of the Devil, and The Last Trump: Being a First Selection from the Literary Remains of George Boon, Appropriate to the Times (the first edition was published pseudonymously under the name 'Reginald Bliss') (1915)
  
• Bealby: A Holiday (1915)
  
• Tidstänkar (1915)
  
• The Research Magnificent (1915)
  
• What is Coming? A Forecast of Things After the War (1916)
  
• Mr. Britling Sees It Through (1916)
  
• The Elements of Reconstruction: A Series of Articles Contributed in July and August 1916 to The Times (the first edition was published pseudonymously under the initals 'D. P.') (1916)
  
• God the Invisible King (1917)*
  
• War and the Future: Italy, France and Britain at War (US edition published as Italy, France and Britain at War) (1917)*
  
• The Soul of a Bishop (1917)*
  
• A Reasonable Man's Peace (1917)
  
• Joan and Peter: The Story of an Education (1918)
  
• In the Fourth Year: Anticipations of a World Peace (1918)
  
• The Undying Fire: A Contemporary Novel (1919)
  
• The Idea of a League of Nations (with Viscount Edward Grey, Lionel Curtis, William Archer, H. Wickham Steed, A. E. Zimmern, J. A. Spender, Viscount Bryce and Gilbert Murray) (1919)
  
• The Way to a League of Nations (with Viscount Edward Grey, Lionel Curtis, William Archer, H. Wickham Steed, A. E. Zimmern, J. A. Spender, Viscount Bryce and Gilbert Murray) (1919)
  
• History is One (1919)
  
• The Outline of History: Being a Plain History of Life and Mankind, I, II (1920, 1931, 1940; posthumous revisions by Raymond Postgate 1949, 1956, 1961, 1971)
  
• Russia in the Shadows (1920)
  
• The Salvaging of Civilization (1921)
  
• The New Teaching of History. With a Reply to Some Criticisms of 'The Outline of History' (1921)
  
• Washington and the Hope of Peace (US title: Washington and the Riddle of Peace) (1922)
  
• What H.G. Wells Thinks about ‘The Mind in the Making’ (1922)
  
• University of London Election: An Electoral Letter (1922)
  
• The World, its Debts and the Rich Men (1922)
  
• A Short History of the World (1922, 1931, 1938, 1945; with several posthumous revisions by G. P. Wells and Raymond Postgate)
  
• The Secret Places of the Heart (1922)*
  
• Men Like Gods: A Novel (1923)
  
• Socialism and the Scientific Motive (1923)
  
• To the Electors of London University, University General Election, 1923, from H.G. Wells, B.Sc., London (1923)
  
• The Labour Ideal of Education (1923)
  
• A Walk Along the Thames Embankment (1923)
  
• The Story of a Great School Master (1924)
  
• The Dream: A Novel (1924)
  
• The P.R. Parliament (1924)
  
• A Year of Prophesying (1924)
  
• Christina Alberta's Father (1925)
  
• A Forecast of the World’s Affairs (1925)
  
• The World of William Clissold: A Novel at a New Angle, I, II, III (1926)
  
• Mr. Belloc Objects to the 'Outline of History' (1926)
  
• Democracy Under Revision (1927)
  
• Playing at Peace (1927)
  
• Meanwhile: The Picture of a Lady (1927)
  
• The Stolen Body (1927)
  
• A Dream of Armageddon (1927)
  
• The Short Stories of H. G. Wells (1927) (later retitled The Complete Short Stories of H. G. Wells and subsequently updated in 1998)
  
• The Way the World is Going: Guesses & Forecasts of the Years Ahead (1928)
  
• The Open Conspiracy: Blue Prints for a World Revolution (1928, 1930 [subtitled A Second Version of This Faith of a Modern Man Made More Explicit and Plain], 1933 [no subtitle]), also published under the title What are We to do With our Lives? [1931])
  
• Mr. Blettsworthy on Rampole Island: Being the Story of a Gentleman of Culture and Refinement who suffered Shipwreck and saw no Human Beings other than Cruel and Savage Cannibals for several years. How he beheld Megatheria alive and made some notes of their Habits. How he became a Sacred Lunatic. How he did at last escape in a Strange Manner from the Horror and Barbarities of Rampole Island in time to fight in the Great War, and how afterwards he came near returning to that Island for ever. With much Amusing and Edifying Matter concerning Manners, Customs, Beliefs, Warfare, Crime, and a Storm at Sea. Concluding with some Reflections upon Life in General and upon these Present Times in Particular (1928)
  
• The Book of Catherine Wells (1928) (edited by Wells)
  
• The King Who Was A King: The Book of a Film (US subtitle An Unconventional Novel) (1929)
  
• Common Sense of World Peace (1929)
  
• The Adventures of Tommy (1929)
  
• Imperialism and The Open Conspiracy (1929)
  
• The Autocracy of Mr. Parham: His Remarkable Adventures in this Changing World (1930)
  
• The Science of Life: A Summary of Contemporary Knowledge about Life and its Possibilities, I, II, III (with Julian S. Huxley and G. P. Wells) (1930) (subsequently reissued in nine volumes, 1934-1937, under the general title The 'Science of Life' Series)
  
• The Way to World Peace (1930)
  
• The Problem of the Troublesome Collaborator: An Account of Certain Difficulties in an Attempt to Produce a Work in Collaboration and of the Intervention of the Society of Authors Therein (1930)
  
• Settlement of the Trouble between Mr. Thring and Mr. Wells: A Footnote to the Problem of the Troublesome Collaborator (1930)
  
• What Are We To Do With Our Lives? (revision of The Open Conspiracy) (1931)
  
• The Work, Wealth and Happiness of Mankind (USA 1931; first UK edition, 1932)
  
• After Democracy: Addresses and Papers on the Present World Situation (1932)
  
• The Bulpington of Blup: Adventures, Poses, Stresses, Conflicts, and Disaster in a Contemporary Brain (1932)
  
• What Should be Done Now? (1932)
  
• The Shape of Things to Come: The Ultimate Revolution (1933)
  
• Experiment in Autobiography: Discoveries and Conclusions of a Very Ordinary Brain (since 1866), I, II (1934) (a third volume, entitled H. G. Wells in Love was published posthumously in 1984)
  
• Stalin-Wells Talk: The Verbatim Record and a Discussion (with Josef Stalin, George Bernard Shaw, J. M. Keynes, Ernst Toller and Dora Russell (1934)
  
• The New America: The New World (1935)
  
• Things to Come: A Film Story (1935)
  
• The Anatomy of Frustration: A Modern Synthesis (1936)
  
• The Croquet Player (1936)
  
• The Idea of a World Encyclopaedia (1936)
  
• The Man Who Could Work Miracles: A Film (1936)
  
• Star Begotten: A Biological Fantasia (US title, Star-Begotten) (1937)
  
• Brynhild, or the Show of Things (1937)
  
• The Camford Visitation (1937)
  
• The Informative Content of Education (1937)
  
• The Brothers: A Story (1938)
  
• World Brain (1938)
  
• Apropos of Dolores (1938)
  
• The Holy Terror (1939)
  
• Travels of a Republican Radical in Search of Hot Water (1939)
  
• The Fate of Homo Sapiens: An unemotional Statement of the Things that are happening to him now, and of the immediate Possibilities confronting him (US title: The Fate of Man) (1939)
  
• The New World Order: Whether it is attainable, how it can be attained, and what soert of world a world at peace will have to be (1939)
  
• The Rights of Man, Or What Are We Fighting For? (1940)
  
• Babes in the Darkling Wood (1940)
  
• The Common Sense of War and Peace: World Revolution of War Unending (1940)
  
• All Aboard for Ararat (1940)
  
• Guide to the New World: A Handbook of Constructive World Revolution (1941)
  
• You Can't Be Too Careful (1941)
  
• The Outlook for Homo Sapiens: An unemotional Statement of the Things that are happening to him now, and of the immediate Possibilities confrontinmg him (1942) (this is an amalgamation of The Fate of Homo Sapiens and The New World Order)
  
• Science and the World-Mind (1942)
  
• Phoenix: A Summary of the Inescapable Conditions of World Reorganization (1942)
  
• A Thesis on the Quality of Illusion in the Continuity of Individual Life of the Higher Metazoa, with Particular Reference to the Species Homo Sapiens (1942)
  
• The Conquest of Time (1942)
  
• The New Rights of Man: Text of Letter to Wells from Soviet Writer, Who Pictures the Ordeal and Rescue of Humanistic Civilization - H. G. Wells' Reply and Program for Liberated Humanity (with Lev Uspensky) (1942)
  
• Crux Ansata: An Indictment of the Roman Catholic Church (1943)
  
• The Mosley Outrage (1943)
  
• The Rights of Man: An Essay in Collective Definition (edited anonymously by Wells) (1943)
  
• '42 to '44: A Contemporary Memoir upon Human Behaviour during the Crisis of the World Revolution (1944)
  
• The Illusion of Personality (1944)
  
• The Happy Turning: A Dream of Life (1945)
  
• Mind at the End of Its Tether (1945)
  
• The Desert Daisy (posthumous publication of a work written in c. 1878-1880) (1957)
  
• The Wealth of Mr Waddy (posthumous publication of a work written in c. 1898-1905, which Wells revised and published as Kipps, edited by Harris Wilson) (1969)
  
• H. G. Wells in Love (posthumous third volume of his autobiography, edited by G. P. Wells) (1984)
  
• The Betterave Papers and Aesop's Quinine for Delphi, edited by John Hammond (2001)

• TARZAN OF THE APES, 1912
• THE RETURN OF TARZAN, 1913
• THE BEAST OF TARZAN, 1914
• THE SON OF TARZAN, 1915
• TARZAN AND THE JEWELS OF OPAR, 1916
• JUNGLE TALES OF TARZAN, 1919
• TARZAN THE UNTAMED, 1920
• TARZAN THE TERRIBLE, 1921
• TARZAN AND THE GOLDEN LION, 1923
• TARZAN AND THE ANT MEN, 1924
• THE MOON MAID, 1926
• THE TARZAN TWINS, 1927
• TARZAN, THE LORD OF JUNGLE, 1928
• TARZAN AND THE LOST EMPIRE, 1929
• TARZAN AT THE EARTH'S CORE, 1930
• TARZAN THE INVINCIBLE, 1931
• TARZAN TRIUMPHANT, 1932
• TARZAN AND THE CITY OF GOLD, 1933
• TARZAN AND THE LION MAN, 1934
• TARZAN AND THE LEOPARD MEN, 1935
• TARZAN'S QUEST, 1936
• TARZAN AND THE TARZAN TWINS WITH JAD-BAL-JA, THE GOLDEN LION, 1936
• TARZAN AND THE FORBIDDEN CITY, 1938
• TARZAN THE MAGNIFICENT, 1939
• TARZAN AND THE FOREIGN LEGION, 1947
• TARZAN AND THE TARZAN TWINS, 1963
• TARZAN AND THE MADMAN, 1964
• TARZAN AND THE CASTAWAYS, 1965
• TARZAN: THE LOST ADVENTURE, 1996 - by E.R.B. and Joe R. Lansdale

Pellucidar series

• AT THE EARTH'S CORE, 1914
• PELLUCIDAR, 1923
• TANAR OF PELLUCIDAR, 1930
• TARZAN AT THE EARTH'S CORE, 1937
• BACK TO THE STONE AGE, 1937
• LAND OF TERROR, 1944
• SAVAGE PELLUCIDAR, 1963

Venus series

• PIRATES OF VENUS, 1934
• LOST ON VENUS, 1935
• CARSON OF VENUS, 1939
• ESCAPE ON VENUS, 1946
• THE WIZARD OF VENUS, 1970
• THE WIZARD OF VENUS AND PIRATE BLOOD, 1984

Mars series

• A PRINCESS OF MARS, 1917
• THE GODS OF MARS, 1918
• THE WARLORD OF MARS, 1919
• THUVIA, MAID OF MARS, 1920
• THE CHESSMEN OF MARS, 1922
• THE MASTER MIND OF MARS, 1928
• A FIGHTING MAN OF MARS, 1931
• SWORDS OF MARS, 1936
• SYNTHETIC MEN OF MARS, 1940
• LLANA OF GATHOL, 1948
• JOHN CARTER OF MARS, 1964

Other works:

• THE MUCKER, 1921
• THE LAND THAT TIME FORGOT, 1924
• THE ETERNAL LOVER, 1925
• THE CAVE GIRL, 1925
• THE MOON MAID, 1926
• THE MAD KING, 1926
• THE MONSTER MEN, 1929
• JUNGLE GIRL, 1932
• OFFICIAL GUIDE OF THE TARZAN CLANS OF AMERICA, 1939 (privately printed)
• THE MAN-EATER, 1955
• TALES OF THREE PLANETS, 1964
• BEYOND THE FARTHEST STAR, 1964
• THE GIRL FROM FARRIS'S, 1965
• THE EFFICIENCY EXPERT, 1966
• I AM A BARBARIAN, 1967
• PIRATE BLOOD, 1970 (as John Tyler McCulloch)