Sixty-five parent--infant dyads were observed reading an unfamiliar book at home. Parents' use of language-stimulating and emotionally rich reading styles was measured via a specially developed Book Sharing Scale for Infants. Aspects of child temperament were assessed by the Infant Characteristics Questionnaire [Bates, J. E., Freeland, C. A. B., & Lounsbury, M. L. (1979). Measurement of infant difficultness. "Child Development," 50(3), 794-803], and parents responsivity was measured by the Caregiver Interaction Scale [Arnett, J. (1989). "Caregiver interaction scale." Princeton, NJ: Educational Testing Service]. Parents' socio-economic status and education, parents' impression of their child being unsociable and the warmth of the caregiver's interaction were positively predictive of the quality of the reading interaction. This suggests that the extent to which parents employ high-quality reading styles with their 10-month-old babies, depends on socio-demographic variables, children's ability to communicate with their parents, and the overall affective quality of their relationship.