The topic of gender differences in reading, writing, and language development has long been of interest to parents, educators, and public-policy makers. While some researchers have claimed that gender differences in verbal and language abilities are disappearing, careful evaluation of the scientific research shows otherwise. Examination of nationally representative samples of educational achievement data show that there are moderately sized gender differences in reading achievement favoring girls and women (d = −0.19 to −0.44 across age groups), and substantially larger gender differences in writing (d = −0.42 to −0.62), spelling (d = −0.39 to −0.50), and grammar (d = −0.39 to −0.42). Explanations for observed gender differences in verbal and language abilities suggest a complex network of biological, social, and cultural forces rather than any single factor.