Christopher Anvil (born Harry Christopher Crosby, March 11, 1925 – November 30, 2009) was a prolific American author who primarily operated under the pseudonym Christopher Anvil for over six decades. Crosby’s writing style is characterized by fast-paced action, complex plots involving futuristic technologies, and exploration of societal and philosophical questions. He particularly focused on science fiction and military themes, delivering a significant volume of work across multiple genres. Crosby is best known for his extensive 'Interstellar Patrol' series, which explored themes of galactic conflict and human survival amongst the stars.























