His fame soon grew nationally, then internationally, and he was featured in a variety of mediums, including Paul Harvey's radio program The Rest of the Story and a Japanese documentary about cats.

[3] Aside from a brief episode in August 1989, when he escaped and went missing for almost a week after a janitor left a side door open at night, Dewey spent the remainder of his life in the library.

[9] He gained further recognition when he was featured in Gary Roma's late 1990s documentary Puss in Books, and his fame spread internationally.

[11] Featured on postcards sold by the Friends of Spencer Public Library, Dewey had helped raise $4000 for the institution by 2005.

[14] Dewey's obituary ran in over 270 national and international newspapers and his death was announced on Japanese television.

[18] In 2008, Myron published Dewey: The Small-Town Library Cat Who Touched the World, written with the help of Bret Witter, which reached number one on The New York Times Best Seller list of nonfiction books.

[24] That same year, Myron and Witter published a children's book, Dewey's Christmas at the Library, intended for 3–6 year-olds.