The PIRLS 2011 International Results in Reading summarizes fourth grade student achievement in each of the 49 countries and nine benchmarking entities which participated in PIRLS and prePIRLS 2011. The report includes trends in reading achievement over time for participants in the previous PIRLS 2001 and 2006 assessments, as well as student performance at the PIRLS International Benchmarks. Achievement results also are presented for reading purposes and comprehension processes. The Reading Report provides a rich array of information which describes the educational contexts for reading, including home environment support, students' backgrounds and attitudes toward reading, the reading curriculum, teachers' education and training, classroom characteristics and activities, and school contexts for reading learning and instruction.