Since 2009, the Boston Book Festival has celebrated the power of the written word and brought world-class literary talent to Boston with its annual, free fall event. Now in its 10th year, the BBF will host its most exciting roster of literary luminaries yet, representing a range of genres including history, fiction, public affairs and children’s literature. Things kick off on Tuesday, October 9th when the inaugural #BBFBookHunt will challenge eager readers to find books…