Through the Looking-Glass, and What Alice Found There is a novel published on 27 December 1871 by Lewis Carroll, a mathematics lecturer at Christ Church, University of Oxford, and the sequel to Alice's Adventures in Wonderland (1865). Alice again enters a fantastical world, this time by climbing through a mirror into the world that she can see beyond it. There she finds that, just like a reflection, everything is reversed, including logic.

Charles Lutwidge Dodgson, better known by his pen name Lewis Carroll, was an English author, poet, mathematician and photographer. His most notable works are Alice's Adventures in Wonderland (1865) and its sequel Through the Looking-Glass (1871). He was noted for his facility with word play, logic, and fantasy. His poems Jabberwocky (1871) and The Hunting of the Snark (1876) are classified in the genre of literary nonsense.