These are books that Lost episodes were named after.
Through the Looking-Glass
by Lewis Carroll
Episode 22 of Season 3. The Dharma Initiative's underwater station is also named "The Looking Glass".
A Tale of Two Cities
by Charles Dickens
Episode 1 of Season 3.
Stranger in a Strange Land
by Robert Heinlein
Episode 9 of Season 3.
Left Behind: A Novel of the Earth's Last Days
by Tim LaHaye & Jerry B. Jenkins
Left Behind is the title of Episode 15 of Season 3.