the 100 most meaningful books of all time

A 2002 survey of around 100 well-known authors from 54 countries voted for the "most meaningful book of all time" in a poll organised by editors at the Norwegian Book Clubs in Oslo. Voters included Doris Lessing, Salman Rushdie, Carlos Fuentes and Norman Mailer.

1. Don Quixote Miguel de Cervantes
2. Things fall apart Chinua Achebe
3. Fairy tales and stories Hans Christian Andersen
4. Pride and prejudice Jane Austen
5. Old Goriot Honore de Balzac
6. Trilogy: Molloy, Malone dies, The Unnamable Samuel Beckett
7. Decameron Giovanni Boccaccio
8. Collected fictions Jorge Luis Borges
9. Wuthering Heights Emily Bronte
10. The Stranger Albert Camus
11. Poems Paul Celan
12. Journey to the end of the night Louis-Ferdinand Celine
13. Canterbury Tales Geoffrey Chaucer
14. Nostromo Joseph Conrad
15. The Divine Comedy Dante Alighieri
16. Great expectations Charles Dickens
17. Jacques the fatalist and his master Denis Diderot
18. Berlin Alexanderplatz Alfred Doblin
19. Crime and punishment Fyodor Dostoyevsky
20. The Idiot Fyodor Dostoyevsky
21. The Possessed Fyodor Dostoyevsky
22. The Brothers Karamazov Fyodor Dostoyevsky
23. Middlemarch George Eliot
24. Invisible man Ralph Ellison
25. Medea Euripides
26. Absalom, Absalom William Faulkner
27. The Sound and the fury William Faulkner
28. Madame Bovary Gustave Flaubert
29. A Sentimental education Gustave Flaubert
30. Gypsy Ballads Federico Garcia Lorca
31. One hundred years of solitude Gabriel Garcia Marquez
32. Love in the time of cholera Gabriel Garcia Marquez
33. The Epic of Gilgamesh
34. Faust Johann Wolfgang von Goethe
35. Dead souls Nikolai Gogol
36. The Tin Drum Günter Grass
37. The Devil to pay in the backlands Joao Guimaraes Rosa
38. Hunger Knut Hamsun
39. The Old man and the sea Ernest Hemingway
40. The Iliad Homer
41. The Odyssey Homer
42. A Doll's house Henrik Ibsen
43. The Book of Job Anon
44. Ulysses James Joyce
45. The Complete Stories Franz Kafka
46. The Trial Franz Kafka
47. The Castle Franz Kafka
48. The Recognition of Sakuntala Kalidasa
49. The Sound of the mountain Yasunari Kawabata
50. Zorba the Greek Nikos Kazantzakis
51. Sons and lovers D H Lawrence
52. Independent people Halldor K Laxness
53. Complete poems Giacomo Leopardi
54. The Golden notebook Doris Lessing
55. Pippi Longstocking Astrid Lindgren
56. Diary of a madman and other stories Lu Xun
57. Mahabharata Anon
58. Children of Gebelawi Naguib Mahfouz
59. Buddenbrooks Thomas Mann
60. The Magic Mountain Thomas Mann
61. Moby Dick Herman Melville
62. Essays Michel de Montaigne
63. History Elsa Morante
64. Beloved Toni Morrison
65. The Tale of Genji Murasaki Shikibu
66. The Man without qualities Robert Musil
67. Lolita Vladimir Nabokov
68. Njal's saga
69. 1984 George Orwell
70. Metamorphoses Ovid
71. The Book of Disquiet Fernando Pessoa
72. The Complete tales Edgar Allan Poe
73. Remembrance of things past Marcel Proust
74. Gargantua and Pantagruel Francois Rabelais
75. Pedro Paramo Juan Rulfo
76. The Mathnawi Jalalu'l-Din Rumi
77. Midnight's children Salman Rushdie
78. The Bostan of Saadi (The Orchard) Sheikh Saadi of Shiraz
79. A Season of migration to the north Tayeb Salih
80. Blindness Jose Saramago
81. Hamlet William Shakespeare
82. King Lear William Shakespeare
83. Othello William Shakespeare
84. Oedipus the King Sophocles
85. The Red and the black Stendhal
86. The Life and opinions of Tristram Shandy Laurence Sterne
87. Confessions of Zeno Italo Svevo
88. Gulliver's travels Jonathan Swift
89. War and Peace Leo Tolstoy
90. Anna Karenina Leo Tolstoy
91. The Death of Ivan Ilyich and other stories Leo Tolstoy
92. Selected Stories Anton Chekhov
93. Thousand and One Nights
94. The Adventures of Huckleberry Finn Mark Twain
95. Ramayana Valmiki
96. The Aeneid Virgil
97. Leaves of grass Walt Whitman
98. Mrs Dalloway Virginia Woolf
99. To the lighthouse Virginia Woolf
100. Memoirs of Hadrian Marguerite Yourcenar

Of the 7 that I have read, I would say that only George Orwell's 1984 is of change-your-life quality.