Pratchett is best known for the Discworld series, a 41-novel saga set on a flat world balanced on the backs of four elephants riding a giant turtle through space. Beginning with The Colour of Magic in 1983, the series used humor and parody to explore themes such as death, religion, politics, and technology. Standout titles include Mort, Guards! Guards!, Small Gods, and Going Postal. He also co-authored Good Omens with Neil Gaiman, later adapted into a popular television series.
Among his honors, Pratchett won the Carnegie Medal for The Amazing Maurice and His Educated Rodents (2001) and was knighted for services to literature in 2009. Diagnosed with early-onset Alzheimer's disease in 2007, he became a prominent advocate for assisted dying. He died in 2015, leaving a legacy of inventive, humane, and wickedly funny storytelling.