World of Ptavvs is a science fiction novel by Larry Niven, first published in 1966 and set in his Known Space universe. It was Niven's first published novel and is based on a 1965 short story of the same name.
We use cookies to enable remarketing through Google Analytics. This allows us to show you relevant advertising based on your previous visits to our site. Do you agree to the use of cookies for remarketing?