Found at Flavorwire, which referred to “10″ books. They are:

Grendel by John Gardner (inspired by Beowulf)

Wide Sargasso Sea by Jean Rhys (inspired by Jane Eyre)

The Hours by Michael Cunningham (inspired by Mrs. Dalloway by Virginia Woolf)

Foe by J.M. Coetzee (inspired by Robinson Crusoe by Daniel Defoe)

Rosencrantz and Guildenstern Are Dead by Tom Stoppard (inspired by Hamlet by William Shakespeare)

March by Geraldine Brooks (inspired by Little Women by Louisa May Alcott

The Penelopiad by Margaret Atwood (inspired by The Odyssey by Homer)

Gertrude and Claudius by John Updike (inspired by Hamlet by William Shakespeare)

Finn by Jon Clinch (inspired by Huckleberry Finn by Mark Twain)

Ahab’s Wife by Sena Jeter Naslund (inspired by Moby Dick by Herman Melville)

A Thousand Acres by Jane Smiley (inspired by King Lear by William Shakespeare)

The Flavorwire link provides commentary.

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