Sex manuals such as the Kama Sutra are some of the best known works of erotic literature. The Ananga Ranga is a lesser known one, aimed specifically at preventing the separation of a husband and wife.
There is a substantial overlap between erotic literature and pornography, with the distinction typically being made on perceived literary merit. This is particularly true of works aimed at men, which generally use explicit sexual imagery. Many banned books have been suppressed because they used erotic imagery.
Whilst there are substantial quantities of written pornographic works, very few of these come near the standards of mainstream literature.
Works of significant literary merit than can be classed as erotic literature include:
The Satyricon of Petronius Arbiter
Lady Chatterley’s Lover by D. H. Lawrence
Ulysses by James Joyce
Delta of Venus by Anaïs Nin