Children from immigrant, low-income families in the Netherlands start school with a limited vocabulary in the language of instruction; therefore, this places them at risk for developing reading difficulties. Exposure to books is assumed to reduce their 2nd language (L2) vocabulary disadvantage. In this experiment, we examined the effects of video storybooks on the receptive and expressive vocabularies of 5-year-old children. Children (N = 92) were exposed repeatedly to the digital storybook. The story was presented with either static or video images. Children in the control condition played with a nonverbal computer game. Children's receptive and expressive book-based vocabularies were assessed. Results reveal that children learned words receptively and expressively; however, the children seldom learned the same words both ways. Both treatments benefited receptive and expressive vocabularies; however, readings with the addition of video were found to be especially effective for expressive L2 vocabulary acquisition. (Contains 2 tables.)