I will never tire of lists...

Penguin Classics - D
1. Daddy Long Legs and Dear Enemy - Jean Webster
2. Daisy Miller - Henry James
3. The Damnation of Theron Ware - Harold Frederic
4. The Damned - Joris-Karl Huysmans
5. Daniel Deronda - George Eliot
6. Dangling Man - Saul Bellow
7. Daphnis and Chloe - Longus
8. De Profundis and Other Writings - Oscar Wilde
9. Dead Souls - Nikolai Gogol
10. The Dean's December - Saul Bellow
11. Death in Venice and Other Tales - Thomas Mann
12. The Death of Ivan Ilych and Other Stories - Leo Tolstoy
13. The Death of King Arthur - Anonymous
14. Death of a Salesman - Arthur Miller
15. The Decameron - Giovanni Boccaccio
16. The Deerslayer - James Fenimore Cooper
17. Desperate Remedies - Thomas Hardy
18. The Devils - Fyodor Dostoyevsky
19. The Dhammapada - Anonymous
20. The Diary of Lady Murasaki - Murasaki Shikibu
21. Diary of a Madman and Other Stories - Nikolai Gogol
22. The Distracted Preacher and Other Sotries - Thomas Hardy
23. The Divine Comedy - Dante Alighieri
24. A Dolls House and Other Plays - Henrik Ibsen
25. Domesday Book - G Martin
26. Don Juan - Lord Byron
27. Don Quixote - Miguel de Cervantes
28. David Copperfield - Charles Dickens
29. Dr. Wortle's School - Anthony Trollope
30. Dombey and Son - Charles Dickens
31. Dracula - Bram Stoker
32. The Dreams in the Witch House - HP Lovecraft
33. The Drinking Den - Emile Zola
34. Dubliners - James Joyce
35. Duluth - Gore Vidal