A book was also released in 1998 , XENA : All I Need to Know I Learned From the Warrior Princess , allegedly written by Gabrielle , Bard of Poteidaia , and was `` translated '' by Josepha Sherman . In 1998 , XENA : All I Need to Know I Learned From the Warrior Princess , was published , allegedly written by Gabrielle , Bard of Poteidaia and `` translated '' by Josepha Sherman .