Lanark by Alasdair Gray

"Lanark" is an unconventional narrative that combines elements of fantasy, dystopia, and realism. The protagonist, a man named Lanark, moves through two parallel existences. In one, he's a young man named Duncan Thaw in post-war Glasgow, struggling with his artistic ambitions and personal relationships. In the other, he's Lanark in the grim, bureaucratic city of Unthank, suffering from a mysterious skin condition and grappling with his identity and purpose. The novel explores themes of love, alienation, creativity, and the human condition, presenting a complex and thought-provoking portrait of life and society.

The 655th greatest book of all time