Gutenberg Readability Search - Readability Catalog of Project Gutenberg eBooks

This table shows the readability data of selected Project Gutenberg eBooks.

  • To search books by Charles Dickens, search with dickens.
  • Input adventure to show Adventures of Huckleberry Finn, Adventures of Sherlock Holmes, Alice's Adventures in Wonderland, etc.
  • Vocabulary size input 13000 gives eBooks suitable for the vocabulary size.
  • Search with a blank input shows the whole catalog.
  • To sort, click the title of the row.


  • Tweet website's pick for you with #readabilitysquare!

    973 results.

    Vocabulary Coverage
    (Difficult: 98%, Appropriate: 99%)
    Conventional Readability Formula
    Title Author Translator Born Died 90% 95% 98% 99% 99.5% 99.9% Word Count (Pages) Words per Sentence Syllables per Word Fog Index Flesch Reading Ease Flesch-Kincaid
    Details An Essay Concerning Humane Understanding, Volume 1 MDCXC, Based on the 2nd Editi Locke, John 1632 1704 2000 3000 6000 8000 10000 16000 149042
    (372)
    31.5 1.51 17.7 46.9 14.5
    Details Ethica. English Spinoza, Benedictus de 1632 1677 3000 4000 6000 9000 13000 17000 87693
    (219)
    16.0 1.56 12.4 59.1 9.0
    Details Diary of Samuel Pepys — Complete Pepys, Samuel Bright, Mynors 1633 (1818) 1703 (1883) 2000 3000 7000 11000 13000 22000 1253859
    (3134)
    30.4 1.36 14.6 61.3 12.3
    Details The Princess of Cleves La Fayette, Madame de (Marie-Madeleine Pioche de La Vergne) 1634 1693 2000 4000 6000 9000 12000 15000 61526
    (153)
    56.6 1.45 26.7 27.1 23.5
    Details Narrative of the Captivity and Restoration of Mrs. Mary Rowlandson Rowlandson, Mary White 1635 1710 2000 4000 7000 11000 15000 19000 20128
    (50)
    25.9 1.35 12.9 66.1 10.5
    Details Micrographia Some Physiological Descriptions of Minute Bodies Made by Magnifying Hooke, Robert 1635 1703 2000 4000 7000 10000 13000 19000 147089
    (367)
    48.8 1.46 23.6 33.9 20.7
    Details Phèdre. English Racine, Jean Boswell, Robert Bruce 1639 1699 4000 5000 9000 11000 14000 18000 13981
    (34)
    14.1 1.4 8.5 74.3 6.4
    Details The Works of Aphra Behn, Volume I Behn, Aphra 1640 1689 3000 5000 9000 12000 16000 22000 144849
    (362)
    9.2 1.4 6.7 78.6 4.6
    Details The Chronology of Ancient Kingdoms Amended To which is Prefix'd, A Short Chronic Newton, Isaac, Sir 1642 1727 3000 4000 7000 12000 17000 18000 69813
    (174)
    15.0 1.42 10.0 71.2 7.0
    Details Opticks or, a Treatise of the Reflections, Refractions, Inflections, and Colours Newton, Isaac, Sir 1642 1727 3000 5000 9000 10000 12000 18000 96556
    (241)
    32.8 1.5 18.0 46.6 14.9
    Details Theodicy Essays on the Goodness of God, the Freedom of Man and the Origin of Evi Leibniz, Gottfried Wilhelm, Freiherr von Huggard, E. M. 1646 1716 3000 4000 7000 9000 13000 20000 184166
    (460)
    24.4 1.56 15.6 50.1 12.3
    Details Robinson Crusoe Defoe, Daniel 1661 1731 2000 3000 6000 8000 11000 17000 120387
    (300)
    49.5 1.38 22.5 39.8 20.0
    Details A Journal of the Plague Year, written by a citizen who continued all the while i Defoe, Daniel 1661 1731 2000 3000 6000 9000 13000 15000 93796
    (234)
    46.5 1.43 22.5 38.7 19.4
    Details The Fortunes and Misfortunes of the Famous Moll Flanders Defoe, Daniel 1661 1731 2000 3000 5000 8000 11000 16000 137615
    (344)
    41.8 1.39 19.7 47.2 17.1
    Details Gulliver's Travels Swift, Jonathan 1667 1745 2000 4000 7000 10000 13000 19000 103706
    (259)
    36.5 1.51 19.2 42.3 16.4
    Details A Modest Proposal Swift, Jonathan 1667 1745 3000 4000 7000 9000 14000 18000 3406
    (8)
    50.8 1.53 25.1 25.5 22.3
    Details Gulliver's Travels Into Several Remote Regions of the World Swift, Jonathan 1667 1745 2000 4000 7000 10000 12000 19000 51555
    (128)
    28.8 1.5 16.0 50.9 13.3
    Details The Spectator, Volumes 1, 2 and 3 With Translations and Index for the Series Addison, Joseph 1672 1719 3000 4000 8000 11000 13000 20000 929911
    (2324)
    26.0 1.51 15.2 52.3 12.4
    Details An Essay on Man Pope, Alexander 1688 1744 4000 6000 9000 12000 14000 22000 46424
    (116)
    19.3 1.37 10.5 71.1 8.1
    Details The Rape of the Lock and Other Poems Pope, Alexander 1688 1744 4000 5000 9000 12000 14000 21000 54188
    (135)
    19.7 1.47 12.1 62.2 9.5
    Details Pamela, or Virtue Rewarded Richardson, Samuel 1689 1761 2000 3000 6000 8000 12000 17000 221156
    (552)
    26.6 1.37 13.2 63.7 11.0
    Details Candide Voltaire 1694 1778 3000 5000 8000 11000 15000 21000 35400
    (88)
    18.0 1.5 11.7 61.4 9.2
    Details The Art of Politicks Bramston, James 1694 1744 4000 8000 12000 17000 20000 24000 10432
    (26)
    16.9 1.68 13.6 47.7 10.8
    Details The Autobiography of Benjamin Franklin Franklin, Benjamin 1706 1790 2000 4000 6000 9000 12000 18000 65762
    (164)
    32.0 1.54 18.0 44.5 15.0
    Details Autobiography of Benjamin Franklin Franklin, Benjamin 1706 1790 2000 4000 6000 9000 12000 19000 73971
    (184)
    27.2 1.54 16.1 49.0 13.2
    Details History of Tom Jones, a Foundling Fielding, Henry 1707 1754 2000 4000 8000 10000 12000 18000 348464
    (871)
    30.5 1.5 16.9 48.8 14.0
    Details Memoirs Of Fanny Hill A New and Genuine Edition from the Original Text (London, Cleland, John 1709 1789 3000 4000 8000 11000 13000 19000 84355
    (210)
    57.8 1.49 27.7 22.4 24.5
    Details A Treatise of Human Nature Hume, David 1711 1776 3000 4000 6000 9000 12000 16000 225521
    (563)
    31.6 1.65 19.8 35.3 16.2
    Details An Enquiry Concerning Human Understanding Hume, David 1711 1776 3000 4000 6000 9000 12000 18000 56587
    (141)
    28.1 1.66 18.7 38.1 14.9
    Details Dialogues Concerning Natural Religion Hume, David 1711 1776 3000 5000 8000 10000 13000 18000 35903
    (89)
    29.4 1.66 19.0 36.4 15.5
    Details An Enquiry Concerning the Principles of Morals Hume, David 1711 1776 3000 5000 8000 11000 13000 19000 48155
    (120)
    31.1 1.71 20.6 30.5 16.7
    Details The Confessions of J. J. Rousseau — Complete Rousseau, Jean-Jacques 1712 1778 3000 4000 7000 10000 12000 18000 274389
    (685)
    30.2 1.57 17.9 43.2 14.7
    Details Emile Rousseau, Jean-Jacques 1712 1778 2000 3000 6000 7000 10000 14000 251868
    (629)
    25.8 1.44 14.1 58.8 11.5
    Details The Life and Opinions of Tristram Shandy, Gentleman Sterne, Laurence 1713 1768 2000 5000 9000 13000 17000 22000 179035
    (447)
    43.2 1.45 21.0 40.2 18.4
    Details Christianity Unveiled Being An Examination of The Principles And Effects of The Holbach, Paul Henri Thiry, baron d' Johnson, W. M. (William Martin) 1723 (1771) 1789 (1797) 4000 6000 9000 11000 13000 18000 39094
    (97)
    21.4 1.64 15.8 46.2 12.1
    Details The Critique of Pure Reason Kant, Immanuel Meiklejohn, J. M. D. (John Miller Dow) 1724 (1830) 1804 (1902) 3000 4000 7000 10000 15000 18000 206467
    (516)
    35.8 1.72 22.9 24.9 18.7
    Details The Critique of Practical Reason Kant, Immanuel Abbott, Thomas Kingsmill 1724 (1829) 1804 (1913) 3000 3000 6000 8000 12000 17000 62637
    (156)
    50.4 1.64 27.2 16.6 23.4
    Details The Complete Memoirs of Jacques Casanova de Seingalt Casanova, Giacomo Machen, Arthur 1725 (1863) 1798 (1947) 2000 4000 7000 10000 13000 19000 1251067
    (3127)
    20.8 1.46 12.2 62.4 9.7
    Details Captain Cook's Journal During the First Voyage Round the World Cook, James 1728 1779 2000 4000 7000 10000 12000 22000 220361
    (550)
    21.2 1.45 12.3 62.8 9.8
    Details The Works of the Right Honourable Edmund Burke, Vol. 03 (of 12) Burke, Edmund 1729 1797 3000 5000 8000 12000 17000 21000 161987
    (404)
    29.8 1.6 18.6 41.0 15.0
    Details The Works of the Right Honourable Edmund Burke, Vol. 01 (of 12) Burke, Edmund 1729 1797 3000 4000 7000 9000 12000 17000 152778
    (381)
    27.5 1.58 17.3 44.9 13.8
    Details She Stoops to Conquer Goldsmith, Oliver 1730 1774 2000 4000 7000 10000 14000 22000 22563
    (56)
    8.3 1.42 6.0 78.2 4.4
    Details 1811 Dictionary of the Vulgar Tongue Grose, Francis 1731 1791 5000 8000 13000 15000 19000 24000 80819
    (202)
    7.1 1.53 6.6 70.3 5.2
    Details The Works of William Hogarth: In a Series of Engravings With Descriptions, and a Trusler, John 1735 1820 4000 6000 10000 13000 15000 21000 41272
    (103)
    26.5 1.58 16.4 46.4 13.4
    Details Common Sense Paine, Thomas 1737 1809 3000 4000 7000 10000 13000 16000 21504
    (53)
    31.1 1.55 18.1 44.2 14.8
    Details The History Of The Decline And Fall Of The Roman Empire Table of Contents with l Gibbon, Edward 1737 1794 3000 5000 7000 10000 14000 18000 10194
    (25)
    7.3 1.75 11.5 51.8 7.8
    Details Writings of Thomas Paine — Volume 2 (1779-1792): the Rights of Man Paine, Thomas 1737 1809 3000 4000 7000 9000 11000 18000 92171
    (230)
    28.4 1.6 17.7 43.0 14.3
    Details Writings of Thomas Paine — Volume 4 (1794-1796): the Age of Reason Paine, Thomas 1737 1809 3000 4000 7000 9000 12000 19000 71992
    (179)
    33.4 1.51 18.4 45.1 15.3
    Details History of the Decline and Fall of the Roman Empire — Volume 1 Gibbon, Edward 1737 1794 4000 6000 9000 13000 16000 21000 256688
    (641)
    18.6 1.72 15.8 42.3 12.0
    Details Common Sense Paine, Thomas 1737 1809 3000 4000 7000 10000 13000 16000 19419
    (48)
    29.7 1.55 17.5 45.4 14.3

    Notes:

    Numbers in the parentheses of the born/died information denotes the translators' born/died year.
    Some of the born/died information of the authors and the translators of the wource data, catalog.rdf provided by the Project Gutenberg, have interrogation marks, which were stripped off in the table of this website for ease of processing the data.
    The authors and the translators displayed in the table are only one of multiple data stated in the catalog.rdf, if the work is composed by more than one author or translator, for ease of processing the data in this website.
    The "Pages" shown in the parentheses at the "Word Count" are the results of the division of the "Word Count" by 400, where this website assumes a page of a book includes 400 words.