This research investigated how interactive book reading activities affect elementary school students' reading fluency and reading comprehension skills. The research was performed in 2017-2018 academic year with 705 students (358 males, 347 females) studying at four state schools of low socioeconomic level in Polatli district of Ankara. 309 of the students were in the second grade, 200 of them were in the third and 196 of them were in the fourth grade. The implementation stage of the research was conducted in the interactive reading classrooms established at the four schools. These classrooms were equipped with wallpapers, shoe racks, stools, bookcases, puppets, wooden geometric shapes, hanging lights, light-proof curtains, material cupboards, computers and sound systems so that the students might feel that they were in a different environment and might gain different learning experiences. Pretest-posttest one-group quasi-experimental design was used in the research. Students' reading fluency and reading comprehension skills were measured before and after the procedure. The findings showed that the interactive book reading activities performed during the study revealed a significant difference in favor of students' posttest scores in regard to reading fluency and reading comprehension. The results were discussed within the context of the related literature and recommendations were made accordingly.