Author Margaret Hill will have a book signing at Barnes & Noble, Citrus Plaza, 27460 Lugonia Avenue, Redlands, on Saturday, May 7, from 1 p.m. to 3 p.m. Her book, “From Sharecropping to Non-Stopping” is about her life as the daughter of sharecroppers in the state of Virginia. She is currently the school board president for the San Bernardino City Unified School District.