This paper presents the revised version of the stages of reading and reader development. Reader development included preschool readers, children readers, adolescent readers, and adult readers. Children’s and adolescent’s periods were set at the beginning, mid-term, and later periods successively. In light of this, the stages of reading and the ideal reader model were set as ‘emergent reading (emergent reader), beginning reading (fluent reader), skillful reading (skillful reader), empathic reading (social reader), strategic reading (strategic reader), critical reading (critical reader), synthetic reading (integrated reader), and independent reading (self-regulated reader). This paper also describes the characteristics of reading materials and reading activities related to each stage.