Subtle Rebellion Salon + Gallery is hosting an art show to benefit the Harford County Autism Society from 7 p.m. to 9 p.m. Friday, May 4 at the gallery, 3007A Emmorton Rd. Abingdon. The art show will feature the work of the talented 5- to 17-year-old students of Exploration Art School. A donation of $5 will be requested at the door. For more information about Exploration Art School, visit www.explorationartschool.com. Subtle Rebellion Salon + Gallery is at 3007A Emmorton Rd. in Abingdon.