Thinker's Library De Thinker's Library (Bibliotheek voor NadenkendenRationalist Association door Watts & Co . De serie bestaat uit een selectie van essays , literatuur en uittreksels uit grotere werken van verschillende klassieke en hedendaagse humanisten en rationalisten .
Elke deel bestaat uit een eponiem essay, soms gevolgd door een verzameling van relevante essays van dezelfde auteur , of een inleidende uittreksel uit een groter werk van die auteur. Elke afwijking hiervan wordt uitgelegd door de titel van het betreffende boek. Alle niet-Engelse teksten werden gepubliceerd in het Engels.
First and Last Things - H. G. Wells
Education - Intellectual, Moral, and Physical - Herbert Spencer
The Riddle of the Universe - Ernst Haeckel
Humanity's Gain from Unbelief, and Other Selections from the Works of Charles Bradlaugh
On Liberty - John Stuart Mill A Short History of the World - H. G. Wells
The Autobiography of Charles Darwin - Charles Darwin The Origin of Species - Charles Darwin
Twelve Years in a Monastery - Joseph McCabe
History of Modern Philosophy - Alfred W. Benn (1930)
Gibbon on Christianity - hoofdstuk 15 en 16 uit Edward Gibbon 's Decline and Fall of the Roman Empire (1930)
The Descent of Man - Deel 1 en het laatste hoofdstuk uit deel 3 - Charles Darwin (1930)History of Civilization in England - Vol. I, - Henry Thomas Buckle
Anthropology - Vol. I, - Sir Edward B. Tylor Anthropology - Vol. II, - Sir Edward B. Tylor
Iphigenia - Two plays, - Euripides , vertaald door Charles Bradlaugh Bonner Lectures and Essays - Thomas Huxley
The Evolution of the Idea of God - Grant Allen
An Agnostic 's Apology, and Other Essays - Sir Leslie Stephen (maart, 1931)
The Churches and Modern Thought - Vivian Phelips
Penguin Island - Anatole France The Pathetic Fallacy - Llewelyn Powys
Historical Trials (A Selection) - Sir John MacDonell
A Short History of Christianity - J. M. Robertson
The Martyrdom of Man by Winwood Reade
Head-hunters, Black, White, and Brown - Alfred C. Haddon (1932)
The Evidence for the Supernatural - Ivor Lloyd Tuckett
The City of Dreadful Night and other poems - Een selectie uit de gedichten van James Thomson (1932)
In the Beginning: The Origin of Civilisation - G. Elliot Smith
Adonis : a Study in the History of Oriental Religion - uit The Golden Bough - James George Frazer (1932)Our New Religion - H. A. L. Fisher
On Compromise - John Morley
A History of the Taxes on Knowledge - Collet Dobson Collet
The Existence of God - Joseph McCabe
The Story of the Bible - MacLeod Yearsley
Savage Survivals: The Story of the Race Told in Simple Languages - J. Howard Moore
The Revolt of the Angels - Anatole France The Outcast - Winwood Reade
Penalties Upon Opinion - Hypatia Bradlaugh Bonner
Oath, Curse, and Blessing - Ernest Crawley
Fireside Science - Sir E. Ray Lankester
History of Anthropology - Alfred C. Haddon (1934)
The World's Earliest Laws - Chilperic Edwards (1934)
Fact and Faith - J.B.S. Haldane
The Men of the Dawn - Dorothy Davison
The Mind in the Making - James Harvey Robinson
The Expression of the Emotions in Man and Animals" - Charles Darwin
Psychology for Everyman (and Woman) - A. E. Mander
The Religion of the Open Mind - Adam Gowans Whyte
Letters on Reasoning - J. M. Robertson
The Social Record of Christianity - Joseph McCabe
Five Stages of Greek Religion : Studies Based on a Course of Lectures Delivered in April 1912 at Columbia University - Gilbert Murray (1935)
The Life of Jesus - Ernest Renan (1935)
Selected Works of Voltaire - Joseph McCabe
What are we to do with our lives? - H. G. Wells
Do What You Will - Aldous Huxley (1936)
Clearer Thinking (Logic for Everyman) - A. E. Mander
History of Ancient Philosophy - A. W. Benn
Your Body: How it is built and how it works - D. Stark Murray
What is Man? - Mark Twain
Man and His Universe - John Langdon-Davies
First Principles - Herbert Spencer
Rights of Man - Thomas Paine This Human Nature - Charles Duff
Dictionary of Scientific Terms as Used in the Various Sciences - C. M. Beadnell
A Book of Good Faith - Montaigne
The Universe of Science - Hyman Levy
Liberty To-day - C. E. M. Joad
The Age of Reason - Thomas Paine The Fair Haven - Samuel Butler (1938)
A Candidate for Truth: Passages from Emerson (1938)
A Short History of Women - John Langdon-Davies
Natural Causes and Supernatural Seemings - Henry Maudsley
Morals, Manners, and Men - Havelock Ellis (1939)
Pages from a Lawyer's Notebooks - E. S. P. Haynes
An Architect of Nature - De autobiografie van Luther Burbank (1939)
Act of God - F. Tennyson Jesse
The Man versus The State - Herbert Spencer
The World As I See It - Albert Einstein (1940)Jocasta 's Crime: An Anthropological Study - Fitzroy Richard Somerset The Twilight of the Gods and Other Tales - Richard Garnett
Kingship - A. M. Hocart
Religion Without Revelation - Julian Huxley Let the People Think - Bertrand Russell
The Myth of the Mind - Frank Kenyon
The Liberty of Man and Other Essays - Robert G. Ingersoll
Man Makes Himself - V. Gordon Childe
World Revolution and the Future of the West - W. Friedmann (1942)
The Origin of the Kiss and Other Scientific Diversions - C. M. Beadnell
The Bible and its Background. Vol. I. - Archibald Robertson
The Bible and its Background. Vol. II. - Archibald Robertson
The Conquest of Time - H. G. Wells (1942)
The Gospel of Rationalism - Charles T. Gorham
Life's Unfolding - Sir Charles Sherrington (1944)
An easy Outline of Astronomy - M. Davidson
The God of the Bible - Evans Bell
In Search of the Real Bible - A. D. Howell Smith
Man Studies Life - G. N. Ridley
The Outlines of Mythology - Lewis Spence
Magic and Religion - James George Frazer
Flight from Conflict - Laurence Collier
Progress and Archaeology - V. Gordon Childe (1944)
The Chemistry of Life - J. S. D. Bacon
Medicine and Mankind - Arnold Sorsby
The Church and Social Progress - Marjorie Bowen
The Great Mystics - George Godwin
The Religion of Ancient Mexico - Lewis Spence
Geology in the Life of Man - Duncan Leitch
A Century for Freedom - Kenneth Urwin
Jesus: Myth or History? - Archibald Robertson
The Ethics of Belief and Other Essays - William Kingdon Clifford
Human Nature, War and Society - John Cohen
The Rational Good: A Study in the Logic of Practice - L. T. Hobhouse
Man: The Verdict of Science - G. N. Ridley
The Distressed Mind - J. A. C. Brown
The Illusion of National Character - Hamilton Fyfe (1940)
Population, Psychology, and Peace - J. C. Flugel
Friar's Lantern - G. G. Coulton
Ideals and Illusions - L. Susan Stebbing
An Outline of the Development of Science - M. Mansel Davies
Head and Hand in Ancient Greece: Four Studies in the Social Relations of Thought - Benjamin Farrington
The Evolution of Society - J. A. C. Brown
Background to Modern Thought - C. D. Hardie
The Holy Heretics: The Story of the Albigensian Crusade - Edmond Holmes
Man His Own Master - Archibald Robertson
Men Without Gods - Hector Hawton
The Earliest Englishman - Sir Arthur Smith-Woodward
Astronomy for Beginners - Martin Davidson The Search for Health - D. Stark Murray
The Mystery of Anna Berger - George Godwin
Wrestling Jacob - Marjorie Bowen
The Origins of Religion - Fitzroy Richard Somerset
The Hero : A Study in Tradition, Myth, and Drama - Fitzroy Richard Somerset
The Life of John Knox - Marjorie Bowen
The French Revolution - Archibald Robertson
The Art of Thought - Graham Wallas
Literary Style and Music - Herbert Spencer
The Origin of Species - Charles Darwin (gedrukt maar niet gepubliceerd)
The Science of Heredity - J. S. D. Bacon
The Great Revivalists - George Godwin