For some, textbooks provide a comprehensive curriculum in which content requirements are developed in a systematic and organized way. Textbooks can give teachers ideas for sequencing, presenting, and assessing content, skills, and concepts. New teachers often depend on textbooks. For others, textbooks represent scripted, uninspired lessons that turn teachers into slaves and strip them of their creativity with a one-solution-fits-all approach. For this group, even intelligent, published education researchers lose their credibility when they become affiliated with a commercial textbook publisher.