Jonas Jonasson is a Swedish author best known for his debut novel, The 100-Year-Old Man Who Climbed Out the Window and Disappeared, published in 2009. The book became an international bestseller and has been translated into numerous languages. It combines humor with historical events, following the adventures of a centenarian who escapes from a nursing home. In addition to his first novel, Jonasson has written several other books, including The Analphabet Who Could Read and Hitman Anders and the Meaning of It All. His writing often features quirky characters and absurd situations, reflecting his unique storytelling style.