This study explores book talks as an approach to teaching Nature of Science (NOS) to young children (4-6 years old). To teach about NOS means to, in one way or another, focus on the processes, humans that build science knowledge, as well as the characteristics and limits of scientific knowledge. Previous research in this area has studied the representation of NOS in science trade books and suggested ways for teachers to highlight this content, specifically in relation to books that have been rendered "exemplary" for teaching NOS. This study focuses on the actual conversations (i.e., book talks) between teachers and children related to science trade books that are available in bookstores. The aim of the study was to contribute further knowledge about the characteristics of book talks related to such books when they are used as an approach to teaching NOS. Book talks (N = 58) between two teachers and their respective groups of children were audiorecorded and transcribed. The results contribute by shedding light on how teachers use the book as a resource in combination with other resources to highlight various aspects of NOS during book talks. This is important since it shows how book talks as an approach to NOS teaching can be staged even if exemplary books are not available. A tentative model that can scaffold teachers' didactic analysis is presented.