The educational achievement of children from non-Western migrant families in the Netherlands and other Western countries lags behind that of natives, especially when it comes to language proficiency and reading ability. This literature review pinpoints what is known and what is as yet unknown about reducing learning disadvantages through school libraries to point to directions for future research. A considerable body of research has shown that school libraries are positively related to learning outcomes in children, as well as to their reading behavior and attitude toward reading, factors that correlate positively with reading and language skills. However, on the basis of existing research, it is hard to draw firm conclusions about the effect of school libraries on students from migrant families in particular. This article indicates that future research should explicitly focus on the impact of school libraries' reading promotion efforts on the reading behavior, attitude toward reading, and reading and language skills of migrant students, leading to more effective educational policies.