I've read THIS many of...
Fandomania.com's "100 Greatest Books" List. These books were suggested and voted on by visitors to the sight.
The full list of books with summaries can be found here: http://fandomania.com/100-greatest-books/
100. The Pigman by Paul Zindel
99. The Day of the Locust by Nathanael West
98. A Clockwork Orange by Anthony Burgess
97. Atlas Shrugged by Ayn Rand
96. V. by Thomas Pynchon
95. The Tin Drum by Günter Grass
94. Deathtrap Dungeon by Ian Livingstone
93. Zen and the Art of Motorcycle Maintenance by Robert M. Pirsig
92. On Writing by Stephen King
91. A Confederacy of Dunces by John Kennedy Toole
90. John Brown’s Body by Stephen Vincent Benét
89. The Prince by Niccolò Machiavelli
88. Leaves of Grass by Walt Whitman
87. The Sirens of Titan by Kurt Vonnegut, Jr.
86. Fried Green Tomatoes at the Whistle Stop Cafe by Fannie Flagg
85. The Road by Cormac McCarthy
84. Mrs. Frisby and the Rats of NIMH by Robert C. O’Brien
83. Elements by Euclid
82. The Silmarillion by J. R. R. Tolkien
81. The God of Small Things by Arundhati Roy
80. Touched by Carolyn Haines
79. House of Leaves by Mark Z. Danielewski
78. The Life and Opinions of Tristram Shandy, Gentleman by Laurence Sterne
77. Twilight by Stephenie Meyer
76. Where the Sidewalk Ends by Shel Silverstein
75. Elric of Melniboné by Michael Moorcock
74. Founding Brothers: The Revolutionary Generation by Joseph J. Ellis
73. The Book of the New Sun: The Shadow of the Torturer by Gene Wolfe
72. Franny and Zooey by J. D. Salinger
71. All Quiet on the Western Front by Erich Maria Remarque
70. The Art of War by Sun Tzu
69. Wuthering Heights by Emily Brontë
68. Something Wicked This Way Comes by Ray Bradbury
67. In Cold Blood by Truman Capote
66. The Book Thief by Markus Zusak
65. And Then There Were None by Agatha Christie
64. Hamlet by William Shakespeare
63. Aesop’s Fables by Aesop
62. Das Kapital by Karl Marx
61. Wicked by Gregory Maguire
60. A Game of Thrones by George R. R. Martin
59. The Sun Also Rises by Ernest Hemingway
58. Galápagos by Kurt Vonnegut
57. Robinson Crusoe by Daniel Defoe
56. Snow Falling on Cedars by David Guterson
55. The Return of the King by J. R. R. Tolkien
54. The Divine Comedy by Dante Alighieri
53. Stranger in a Strange Land by Robert A. Heinlein
52. Interview with the Vampire by Anne Rice
51. Dune by Frank Herbert
50. The Gunslinger by Stephen King
49. The Time Traveler’s Wife by Audrey Niffenegger
48. Little Women by Louisa May Alcott
47. Anne of Green Gables by L. M. Montgomery
46. A Farewell to Arms by Ernest Hemingway
45. Crime and Punishment by Fyodor Dostoevsky
44. World War Z: An Oral History of the Zombie War by Max Brooks
43. The Canterbury Tales by Geoffrey Chaucer
42. The Pillars of the Earth by Ken Follett
41. Ubik by Philip K. Dick
40. The Master and Margarita by Mikhail Bulgakov
39. Animal Farm by George Orwell
38. Life of Pi by Yann Martel
37. Lord of the Flies by William Golding
36. Great Expectations by Charles Dickens
35. The Fellowship of the Ring by J. R. R. Tolkien
34. The Grapes of Wrath by John Steinbeck
33. Watership Down by Richard Adams
32. Lolita by Vladimir Nabokov
31. Jane Eyre by Charlotte Brontë
30. Slaughterhouse-Five by Kurt Vonnegut, Jr.
29. Don Quixote by Miguel de Cervantes
28. Ender’s Game by Orson Scott Card
27. A Wrinkle in Time by Madeline L’Engle
26. Of Mice and Men by John Steinbeck
25. The Iliad by Homer
24. The Stand by Stephen King
23. Breakfast of Champions by Kurt Vonnegut
22. The Adventures of Huckleberry Finn by Mark Twain
21. The Da Vinci Code by Dan Brown
20. Catch-22 by Joseph Heller
19. Brave New World by Aldous Huxley
18. The Two Towers by J. R. R. Tolkien
17. Heart of Darkness by Joseph Conrad
16. Frankenstein by Mary Shelley
15. Dracula by Bram Stoker
14. Les Misérables by Victor Hugo
13. Fahrenheit 451 by Ray Bradbury
12. The Hobbit by J. R. R. Tolkien
11. Harry Potter and the Prisoner of Azkaban by J. K. Rowling
10. The Hitchhiker’s Guide to the Galaxy by Douglas Adams
9. To Kill a Mockingbird by Harper Lee
8. Gone With the Wind by Margaret Mitchell
7. Pride and Prejudice by Jane Austen
6. Harry Potter and the Philosopher’s / Sorcerer’s Stone by J. K. Rowling
5. On the Origin of Species by Charles Darwin
4. The Great Gatsby by F. Scott Fitzgerald
3. The Bible (King James Version)
2. 1984 by George Orwell
1. The Catcher in the Rye by J. D. Salinger
The full list of books with summaries can be found here: http://fandomania.com/100-greatest-books/
100. The Pigman by Paul Zindel
99. The Day of the Locust by Nathanael West
98. A Clockwork Orange by Anthony Burgess
97. Atlas Shrugged by Ayn Rand
96. V. by Thomas Pynchon
95. The Tin Drum by Günter Grass
94. Deathtrap Dungeon by Ian Livingstone
93. Zen and the Art of Motorcycle Maintenance by Robert M. Pirsig
92. On Writing by Stephen King
91. A Confederacy of Dunces by John Kennedy Toole
90. John Brown’s Body by Stephen Vincent Benét
89. The Prince by Niccolò Machiavelli
88. Leaves of Grass by Walt Whitman
87. The Sirens of Titan by Kurt Vonnegut, Jr.
86. Fried Green Tomatoes at the Whistle Stop Cafe by Fannie Flagg
85. The Road by Cormac McCarthy
84. Mrs. Frisby and the Rats of NIMH by Robert C. O’Brien
83. Elements by Euclid
82. The Silmarillion by J. R. R. Tolkien
81. The God of Small Things by Arundhati Roy
80. Touched by Carolyn Haines
79. House of Leaves by Mark Z. Danielewski
78. The Life and Opinions of Tristram Shandy, Gentleman by Laurence Sterne
77. Twilight by Stephenie Meyer
76. Where the Sidewalk Ends by Shel Silverstein
75. Elric of Melniboné by Michael Moorcock
74. Founding Brothers: The Revolutionary Generation by Joseph J. Ellis
73. The Book of the New Sun: The Shadow of the Torturer by Gene Wolfe
72. Franny and Zooey by J. D. Salinger
71. All Quiet on the Western Front by Erich Maria Remarque
70. The Art of War by Sun Tzu
69. Wuthering Heights by Emily Brontë
68. Something Wicked This Way Comes by Ray Bradbury
67. In Cold Blood by Truman Capote
66. The Book Thief by Markus Zusak
65. And Then There Were None by Agatha Christie
64. Hamlet by William Shakespeare
63. Aesop’s Fables by Aesop
62. Das Kapital by Karl Marx
61. Wicked by Gregory Maguire
60. A Game of Thrones by George R. R. Martin
59. The Sun Also Rises by Ernest Hemingway
58. Galápagos by Kurt Vonnegut
57. Robinson Crusoe by Daniel Defoe
56. Snow Falling on Cedars by David Guterson
55. The Return of the King by J. R. R. Tolkien
54. The Divine Comedy by Dante Alighieri
53. Stranger in a Strange Land by Robert A. Heinlein
52. Interview with the Vampire by Anne Rice
51. Dune by Frank Herbert
50. The Gunslinger by Stephen King
49. The Time Traveler’s Wife by Audrey Niffenegger
48. Little Women by Louisa May Alcott
47. Anne of Green Gables by L. M. Montgomery
46. A Farewell to Arms by Ernest Hemingway
45. Crime and Punishment by Fyodor Dostoevsky
44. World War Z: An Oral History of the Zombie War by Max Brooks
43. The Canterbury Tales by Geoffrey Chaucer
42. The Pillars of the Earth by Ken Follett
41. Ubik by Philip K. Dick
40. The Master and Margarita by Mikhail Bulgakov
39. Animal Farm by George Orwell
38. Life of Pi by Yann Martel
37. Lord of the Flies by William Golding
36. Great Expectations by Charles Dickens
35. The Fellowship of the Ring by J. R. R. Tolkien
34. The Grapes of Wrath by John Steinbeck
33. Watership Down by Richard Adams
32. Lolita by Vladimir Nabokov
31. Jane Eyre by Charlotte Brontë
30. Slaughterhouse-Five by Kurt Vonnegut, Jr.
29. Don Quixote by Miguel de Cervantes
28. Ender’s Game by Orson Scott Card
27. A Wrinkle in Time by Madeline L’Engle
26. Of Mice and Men by John Steinbeck
25. The Iliad by Homer
24. The Stand by Stephen King
23. Breakfast of Champions by Kurt Vonnegut
22. The Adventures of Huckleberry Finn by Mark Twain
21. The Da Vinci Code by Dan Brown
20. Catch-22 by Joseph Heller
19. Brave New World by Aldous Huxley
18. The Two Towers by J. R. R. Tolkien
17. Heart of Darkness by Joseph Conrad
16. Frankenstein by Mary Shelley
15. Dracula by Bram Stoker
14. Les Misérables by Victor Hugo
13. Fahrenheit 451 by Ray Bradbury
12. The Hobbit by J. R. R. Tolkien
11. Harry Potter and the Prisoner of Azkaban by J. K. Rowling
10. The Hitchhiker’s Guide to the Galaxy by Douglas Adams
9. To Kill a Mockingbird by Harper Lee
8. Gone With the Wind by Margaret Mitchell
7. Pride and Prejudice by Jane Austen
6. Harry Potter and the Philosopher’s / Sorcerer’s Stone by J. K. Rowling
5. On the Origin of Species by Charles Darwin
4. The Great Gatsby by F. Scott Fitzgerald
3. The Bible (King James Version)
2. 1984 by George Orwell
1. The Catcher in the Rye by J. D. Salinger