The problem of identifying the component content of the ecology of book culture is considered. The main eco-cultural aspects of book culture are analyzed through the identification of various loci, including specific relationships between actors in the book space. It is shown that the problematic situations arising in these loci are largely associated with the underestimation of their eco-cultural aspects. The purpose of the article: to substantiate the main functional and semantic directions of activity in the field of ecology of book culture. To achieve the goal, a problem-thematic analysis of individual parts of book culture was used; exemplification method, clarifying the presented provisions; functional-activity approach in substantiating specific directions of ecological and cultural activity in the space of book culture. Presented eco-cultural aspectation of book production and logistics, qualities of book text, features of interaction with the reader, problems of the information environment of book culture, loci of book existence, processes of transformation of book space, including in the context of multimedia. In the dynamics of development of the ecology of book culture, all designated components interact in functional and spiritual-semantic meaning.