Daniel Tammet (born 31 January 1979) is an English essayist, novelist, poet, translator, and autistic savant. His memoir, "Born on a Blue Day" (2006), is about his early life with Asperger syndrome and savant syndrome, and was named a "Best Book for Young Adults" in 2008 by the American Library Association's "Young Adult Library Services" magazine. His second book, "Embracing the Wide Sky", was one of France's best-selling books of 2009. His third book, "Thinking in Numbers", was published in 2012 by Hodder & Stoughton in the United Kingdom and in 2013 by Little, Brown and Company in the United States and Canada.