Los Angeles Unified School District serves almost all of the city of Los Angeles, as well as several surrounding communities, with a student population over 800,000. After Proposition 13 was approved in 1978, urban school districts had considerable trouble with funding. LAUSD has become known for its underfunded, overcrowded and poorly maintained campuses, although its 162 Magnet schools to help compete with local private schools.[66] Several small sections of Los Angeles are in the Las Virgenes Unified School District. Los Angeles County Office of Education operates the Los Angeles County High School for the Arts. The Los Angeles Public Library system operates 72 public libraries in the city.