Amanda Knox's upcoming memoir has a title, a cover design and a new publication date.

HarperCollins announced Wednesday (US time, Thursday NZ time) the book is titled Waiting to be Heard.

It will be released on April 30, two months later than originally scheduled.

The date was changed out of deference to a court in Italy that scheduled a March 25 hearing for the prosecution's appeal of the former exchange student's acquittal in the 2007 murder of her British roommate.

The 25-year-old Knox returned to her native Seattle last year after spending four years in a jail in Perugia, Italy. Her ordeal made international headlines.

Her book deal was announced in February and reportedly was worth $4 million.

The cover features a close-up of an intense, unsmiling Knox. The picture was taken earlier this year.

- AP