Librarians say they view the common core, with its emphasis on explanation, complex text, and cross-disciplinary synthesis, as an unprecedented opportunity for them to really strut their stuff. Adopted by all but four states, the standards have prompted coordinating discussions among the library-association divisions that represent librarians in public schools, city libraries, and higher education. All librarians are affected by the new expectations: those who help at K-12 schools, at city libraries during the after-school and weekend hours, and those on college campuses, who have had to support students unequipped for college-level research and inquiry. The common standards have prompted school librarians to "take a hard look" at their collections to weed out dated material and bolster challenging fiction and nonfiction resources. In doing so, they are looking especially closely at the rigor of the readings they offer, since the standards emphasize assigning students "on-grade-level" texts, even if that means extra supports are needed to help them. Librarians are also looking to better balance their collections with high-quality nonfiction since the standards use such texts as content-builders and vehicles for the teaching of discipline-specific literacy skills.