The memoir, "Honor Bound: My Journey to Hell and Back with Amanda Knox, " draws heavily on diaries he kept and letters he wrote to friends, family and his hometown newspaper during his years in prison, the preface says.

CNN: Profile: Amanda Knox co-defendant Raffaele Sollecito

As the last Swede standing, Volvo seems honor-bound to carry on the tradition of Scandinavian weirdness once upheld by Saab.

WSJ: 2012 Volvo C30 T5 R-Design Polestar Edition Review: The Spirit of Sweden Lives | Rumble Seat by Dan Neil

The notion of a man's personal honor being bound up with his mustache appears to have survived into more recent times in some areas.

CNN: Mideast men go under knife for manly mustaches

Although we understand their frustration, we are bound by this commitment and must continue to honor it.

CNN: STORY HIGHLIGHTS