Arthur Sellings was a respected British scientific researcher and science-fiction writer, noted for his studies of human adaptability in the face of physical, psychological, and cultural challenges--especially those involving reconsideration of a priori premises and adjustment to frightening shifts of perception, alien races, and alien environments. His carefully crafted science fiction deals with extrasensory perception, generational starships, travel among dimensions or times, antigravity, the transforming power of drugs, memory transfer, genetic engineering, mutation, collective racial memory, and postholocaust nightmares. His novels are particularly notable for their convincing characterization, compelling plots, irony, and humor. Critics have praised their "precision," "vision," and "insight."

Though Sellings's real name is sometimes listed as Robert Arthur Ley, most sources, including his wife, call him Arthur Gordon Ley. In addition to the pseudonym Arthur Sellings, he used the pen names Ray Luther and Martin Luther. There is also some disagreement about his birth date...