Providing an empirical compendium of behaviors, Linda Behar discusses a quantifiable knowledge base for the field of curriculum. This research study answers the questions: What are the most influential textbooks in the field? What are the important domains of curriculum and the important behaviors and activities? Do teachers agree about specific practices? Behar fills the gap left by previous discussions about knowledge base components which, largely qualitative in nature, have failed to provide empirical data to support ideas put forth.