The specific research questions were as follows:1. How does placement of teacher talk before, during, and after shared-book reading relate to preschoolers’ vocabulary gains on standardized measures of receptive and expressive vocabulary? 2. How does duration and/or frequency of types of teacher talk relate to preschoolers’ vocabulary gains on standardized measures of receptive and expressive vocabulary? 3. Is there an interaction between duration and/or frequency of types of teacher talk and students’ beginning-of-year receptive and expressive vocabulary scores and students’ end-of-year scores on the same measures?