Brent Weeks' Night Angel trilogy has sold over a million copies since its launch in 2008 — so why is Orbit Books publishing his latest work only in e-book format?

Orbit is trying something new: publishing Perfect Shadow, a novella by Weeks which takes place in the same universe as the Night Angel books, as an electronic book in both the U.S. and the U.K. Said Orbit Publisher Tim Holman in a statement:

The digital marketplace is an irresistible opportunity to publish shorter works of fiction. With over a million copies sold worldwide since its launch in 2008, Brent Weeks' Night Angel Trilogy has become one of the fastest selling fantasy series of all time.

Publishing a new novella set in the same world, and doing so simultaneously around the world in e-book and audio editions, has been a really exciting publishing challenge.

[The Bookseller]