The Long Utopia

The fourth novel in Terry Pratchett and Stephen Baxter s internationally bestselling Long Earth series, hailed as a brilliant science fiction collaboration... a love letter to all Pratchett fans, readers, and lovers of wonder everywhere (Io9).

2045-2059. Human society continues to evolve on Datum Earth, its battered and weary origin planet, as the spread of humanity progresses throughout the many Earths beyond.