In the final installment of his long-running series of interviews with publishing professionals, Jofie Ferrari-Adler talked with Jonathan Karp, the publisher and editor in chief of Twelve, an imprint of the Hachette Book Group.

Among the many topics they discussed in Karp's office were the editor's ideas about great storytelling and whether the late U. S. senator Ted Kennedy's memoir,True Compass, published by Twelve in September, was worth the reported eight-million-dollar advance they paid for it.