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 De vita Caesarum Suetonius Tranquillus, Gaius 75 160 3000 5000 9000 12000 15000 22000 228866
    (572)
    26.5 1.63 17.5 42.4 13.9
    Details The Greatest Highway in the World Historical, Industrial and Descriptive Informa New York Central Railroad Company 3000 4000 7000 9000 12000 18000 48248
    (120)
    14.7 1.63 12.4 53.8 9.4
    Details The Mystery of the Pinckney Draught Nott, Charles C. 1827 1916 3000 4000 8000 9000 10000 17000 59403
    (148)
    24.7 1.63 17.1 43.9 13.3
    Details Elements of Structural and Systematic Botany For High Schools and Elementary Col Campbell, Douglas Houghton 1859 1953 4000 7000 13000 18000 21000 24000 68439
    (171)
    10.5 1.63 10.1 58.4 7.7
    Details Précis de l'art de la guerre. English Jomini, Antoine Henri, baron de Mendell, George H. (George Henry) 1779 (1831) 1869 (1902) 3000 4000 6000 8000 10000 17000 139359
    (348)
    21.4 1.63 15.5 46.9 12.0
    Details Email 101 Goodwin, John 3000 3000 5000 7000 11000 19000 19561
    (48)
    15.1 1.63 12.3 53.6 9.5
    Details The Analysis of Mind Russell, Bertrand 1872 1970 3000 3000 5000 6000 8000 15000 88527
    (221)
    24.8 1.63 16.8 43.3 13.4
    Details The Story of Geographical Discovery How the World Became Known Jacobs, Joseph 1854 1916 3000 4000 6000 9000 12000 22000 46249
    (115)
    15.9 1.63 13.1 52.9 9.8
    Details Dream Psychology Psychoanalysis for Beginners Freud, Sigmund Eder, M. D. (Montague David) 1856 (1866) 1939 (1936) 3000 4000 6000 8000 11000 16000 53068
    (132)
    25.7 1.64 17.2 42.3 13.7
    Details Lineage, Life and Labors of José Rizal, Philippine Patriot Craig, Austin 1872 3000 4000 7000 9000 11000 19000 62400
    (156)
    29.6 1.64 18.6 38.3 15.3
    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 Myths of Babylonia and Assyria Mackenzie, Donald A. (Donald Alexander) 1873 1936 3000 5000 9000 11000 15000 22000 149754
    (374)
    21.1 1.64 14.9 46.6 12.0
    Details Political Ideals Russell, Bertrand 1872 1970 3000 3000 5000 7000 9000 12000 22188
    (55)
    25.4 1.64 16.9 42.1 13.7
    Details On Liberty Mill, John Stuart 1806 1873 3000 4000 6000 8000 10000 16000 51737
    (129)
    35.8 1.64 21.3 31.8 17.7
    Details A Little Book of Filipino Riddles 4000 6000 10000 15000 18000 24000 15684
    (39)
    8.6 1.64 8.8 59.3 7.1
    Details Concerning the Spiritual in Art Kandinsky, Wassily Sadleir, Michael 1866 (1888) 1944 (1957) 3000 4000 5000 8000 10000 17000 26025
    (65)
    20.0 1.64 14.5 47.8 11.6
    Details Paris and the Social Revolution A Study of the Revolutionary Elements in the Var Sanborn, Alvan Francis 4000 6000 10000 13000 16000 21000 114300
    (285)
    24.2 1.64 16.2 43.1 13.3
    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 Anarchism and Other Essays Goldman, Emma 1869 1940 3000 5000 7000 9000 11000 16000 67167
    (167)
    21.2 1.64 15.1 46.2 12.1
    Details Democracy in America — Volume 2 Tocqueville, Alexis de Reeve, Henry 1805 (1813) 1859 (1895) 3000 4000 7000 8000 11000 16000 140667
    (351)
    33.1 1.64 20.1 34.3 16.7
    Details Utilitarianism Mill, John Stuart 1806 1873 3000 4000 6000 8000 10000 15000 27456
    (68)
    39.0 1.64 22.5 28.2 19.0
    Details Line and Form (1900) Crane, Walter 1845 1915 3000 4000 7000 10000 13000 19000 44073
    (110)
    32.9 1.64 19.6 34.8 16.6
    Details Beyond Good and Evil Nietzsche, Friedrich Wilhelm Zimmern, Helen 1844 (1846) 1900 (1934) 3000 5000 8000 10000 13000 18000 61977
    (154)
    32.8 1.65 19.9 33.7 16.7
    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 The Elements of Style Strunk, William 3000 4000 7000 9000 10000 15000 13203
    (33)
    15.7 1.65 13.1 51.3 10.0
    Details A General Introduction to Psychoanalysis Freud, Sigmund Hall, G. Stanley 1856 (1846) 1939 (1924) 3000 4000 7000 9000 10000 15000 155848
    (389)
    24.6 1.65 16.9 42.3 13.5
    Details Masters of Water-Colour Painting 3000 4000 7000 11000 15000 20000 4860
    (12)
    14.8 1.65 12.1 52.6 9.6
    Details Principles Of Political Economy Abridged with Critical, Bibliographical, and Exp Mill, John Stuart 1806 1873 3000 3000 5000 7000 9000 15000 231338
    (578)
    23.3 1.65 16.3 43.5 13.0
    Details De re coquinaria. English Apicius Vehling, Joseph Dommers (1879) (1950) 5000 8000 13000 16000 20000 24000 94575
    (236)
    12.5 1.65 11.5 54.3 8.8
    Details Human, All Too Human A Book for Free Spirits Nietzsche, Friedrich Wilhelm Harvey, Alexander Miller 1844 (1867) 1900 (1928) 3000 5000 7000 10000 12000 18000 36537
    (91)
    32.2 1.65 19.7 34.9 16.4
    Details The Principles of Masonic Law A Treatise on the Constitutional Laws, Usages and Mackey, Albert Gallatin 1807 1881 3000 4000 7000 9000 10000 15000 70062
    (175)
    26.1 1.65 17.7 40.8 14.1
    Details The Symbolism of Freemasonry Illustrating and Explaining Its Science and Philoso Mackey, Albert Gallatin 1807 1881 3000 5000 9000 12000 14000 21000 100385
    (250)
    23.8 1.65 16.8 43.3 13.1
    Details Byzantine Churches in Constantinople Their History and Architecture George, Walter S.Henderson, Arthur E. (Arthur Edward) 1870 4000 5000 10000 13000 16000 20000 99523
    (248)
    12.9 1.65 12.0 54.1 8.9
    Details Illustrated History of Furniture From the Earliest to the Present Time Litchfield, Frederick 1850 1930 3000 5000 9000 12000 15000 25000 73893
    (184)
    20.4 1.66 15.3 45.4 12.0
    Details The World's Greatest Books — Volume 15 — Science 3000 4000 8000 11000 15000 21000 91873
    (229)
    27.8 1.66 18.4 38.2 14.9
    Details Autobiography of a Yogi Yogananda, Paramahansa 1893 1952 3000 6000 9000 13000 16000 22000 153564
    (383)
    15.3 1.66 12.6 50.5 10.0
    Details Music Notation and Terminology Gehrkens, Karl Wilson 1882 1975 3000 5000 10000 15000 17000 23000 40795
    (101)
    13.0 1.66 11.8 53.5 9.0
    Details A System Of Logic, Ratiocinative And Inductive Mill, John Stuart 1806 1873 3000 4000 7000 9000 12000 18000 408771
    (1021)
    35.2 1.66 21.6 30.6 17.7
    Details The Chemistry of Food and Nutrition Duncan, A. W. 3000 5000 9000 12000 16000 21000 31665
    (79)
    14.3 1.66 12.8 51.5 9.6
    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 Sex Avoided subjects Discussed in Plain English Stanton, Henry 3000 5000 8000 11000 14000 20000 13663
    (34)
    20.6 1.66 15.5 45.6 12.0
    Details Sex-linked Inheritance in Drosophila Morgan, Thomas Hunt 1866 1945 4000 7000 13000 13000 14000 24000 27302
    (68)
    14.2 1.66 11.4 52.4 9.5
    Details Strictures on Nullification Everett, Alexander Hill 3000 3000 6000 8000 9000 14000 30117
    (75)
    36.3 1.66 22.0 29.6 18.2
    Details Outlines of Greek and Roman Medicine Elliott, James, Sir 1880 1959 3000 5000 9000 12000 16000 23000 36438
    (91)
    20.3 1.66 15.5 45.7 11.9
    Details British Castles Ashdown, Charles H. 3000 5000 9000 12000 16000 23000 39601
    (99)
    25.6 1.66 17.2 40.7 14.0
    Details The Descent of Man Darwin, Charles 1809 1882 3000 5000 9000 12000 16000 23000 298564
    (746)
    17.6 1.66 14.0 48.4 10.9
    Details The Swastika The Earliest Known Symbol, and Its Migration; with Observations on Wilson, Thomas 4000 7000 10000 14000 18000 22000 94225
    (235)
    9.4 1.66 10.9 57.1 7.6
    Details Architecture Gothic and Renaissance Smith, T. Roger (Thomas Roger) 1830 1903 4000 6000 8000 13000 14000 20000 54623
    (136)
    17.7 1.66 14.0 48.1 11.0
    Details Architecture Classic and Early Christian Slater, John 1847 1924 3000 5000 9000 13000 15000 22000 54084
    (135)
    18.1 1.66 14.3 48.4 11.0
    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

    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.