Complete Classroom Library includes one each of the following: Math Library Science Library Social Studies Library Content Area Classroom Libraries include: 1 display box containing 10 6-packs (60 little books) 1 Teacher Resource Portfolio 1 Assessment Book (where available) Big Book Collection includes: 10 Big Books for Science 10 Big Books for Social Studies 10 Big Books for Math Classroom Library Add-on Packs include 1 copy of each title from the social studies, science, and math libraries. Add-On Packs include 1 copy of each title.