Mid Sweden University and Kalmar University have organised surveys on reading skills in a number of Swedish municipalities. All students in grade 8 in these municipalities have participated in the surveys, in total 16 287 students. These surveys have included a reading test and information collected from the teachers about the students, including participation in instruction in Swedish as a second language and in their mother tongues. Students of immigrant origin in Sweden are offered the possibility to participate in instruction in Swedish as a second language and in their mother tongue. Collected data from the municipalities are used to see whether the percentage of students of immigrant origin participating in these types of instruction is increasing or decreasing. The data are also used to look at differences between those students of immigrant origin who participate and not participate in these types of instruction. Are there differences in the results on the reading tests? Are different language groups participating to the same extent in these types of instruction? Are there gender differences related to the participation in these types of instruction? The results will be further discussed and related to findings from other surveys, both national and international.