Frigyes Karinthy (1887—1938) was a Hungarian author, playwright, poet, journalist, and translator. He was the first proponent of the six degrees of separation concept in his 1929 short story, L‡ncszemek (Chains). Karinthy is known in English for his novellas Voyage to Faremido and Capillaria. Father of Ferenc Karinthy, he remains one Hungary’s most popular writers.

Oliver Sacks practices neurology in New York City. His books include Awakenings, Uncle Tungsten, and The Man Who Mistook His Wife for a Hat.