Cohen reports that it was extremely difficult to find a publisher who was willing to purchase the book, saying "I spent two-and-a-half years going around editors. I must have had 80 [meetings with editors]. And they all said ‘don’t be stupid’. At last Ebury took it. The editor there was made to understand that if it sold less than 10,000 copies, he’d lose his job. (...) It sold more than 200,000 copies in the first year."  He also states that the books were inspired by a "bloody awful" book on the science of Star Trek ,  and noted that Pratchett was initially reluctant to write about science on the Discworld "because there isn’t any science on the Discworld". 
usual term. The word was certainly not bestowed upon a cat early in life, as is evident from the melancholy character ascribed to it in Shakespeare's allusion in "1 Henry IV." (i. 2)" I am as melancholy as a gib cat." Ray gives "as melancholy as a gib’d [a corruption of gib] cat." The term occurs again in "Hamlet" (iii. 4). It is improperly applied to a female by Beaumont and Fletcher in the "Scornful Lady" (v. 1)—"Bring out the cat-hounds! I'll make you take a tree, whore; then with my tiller bring down your gib-ship, and then have you cased and hung up in the warren."
Nigerian Americans, like many Africans migrating into the United States, are willing to settle almost anywhere. Family relations, colleges or universities previously attended by relatives and friends, and the weather are three major considerations for settlement by Nigerian Americans. Early Nigerians coming to the United States went to schools in the southern United States. Large metropolitan areas attract modern day Nigerian Americans, many of whom hold prestigious professional jobs. Poor economic conditions have forced many highly educated Nigerian Americans to take up odd jobs. In many metropolitan areas, Nigerian Americans with one or several graduate degrees are taxi drivers or security officers. The heaviest concentrations of Nigerian Americans are found in Texas, California, New York, Maryland, Illinois, New Jersey, and Georgia.