The Houses of Iszm is a science fiction novella by American writer Jack Vance, which appeared in Startling Stories magazine in 1954.
It was reissued in book form in 1964 as part of an Ace Double novel, together with Vance's Son of the Tree.
The Iszic maintain a jealously guarded monopoly, exporting only enough trees to keep prices high and make a great profit.
He is temporarily imprisoned with the sole survivor of the raid as a prime suspect in the eyes of the Iszic security force.
The Houses of Iszm exhibits some of the stylistic elements that would come to characterize many of Vance's later works: a picaresque protagonist who unintentionally achieves the greater good in spite of himself, highly exotic locales populated by equally exotic sentient species, and the theme that more advanced sentient species are withholding vital technology or information in order to keep humanity in a subservient status.