Fifty countries from around the world participated in the PIRLS 2016 international assessment of reading comprehension at the fourth grade, and in every country there was a wide range of reading achievement from basic skills to advanced comprehension. The fourth grade students in the Russian Federation and Singapore had the highest reading achievement on average. These two countries also had more than one-fourth of their students reaching the PIRLS Advanced International Benchmark. Students reaching this level interpreted, integrated, and evaluated story plots and information in relatively complex texts. Hong Kong SAR, Ireland, Finland, Poland, and Northern Ireland also performed very well, with approximately one-fi fth of their students reaching the Advanced Benchmark.