By Debbie Hall   The Las Vegas Book Festival (LVBF) returns to the Historic Fifth Street School, 401 S. 4th St., in downtown Las Vegas from 10 a.m. to 5 p.m. on Saturday, Oct. 18.  For over 20 years, LVBF has stood as Nevada’s largest literary event—a joyous, free festival where reading, writing, storytelling, and community converge.   Headliners to Watch — and What They’re Saying This year’s headliners bring star power and fresh perspectives: Taylor Jenkins Reid , the New Yo