Razorbill spent a low six-figure sum on the print version and is planning a first print run of 50, 000 copies.

WSJ: Enhanced E-Books: Blowing Up the Book

His first couple of books were released by a small press, with a print run of just a few thousand copies.

WSJ: Harlan Coben Floods the Zone

Stellar reviews prompted a run on the entire series, leading Picador to order four additional print runs of the first four novels.

WSJ: Hot Series From Hilary Mantel and Edward St. Aubyn: Do You Need to Read the First One?