This book organizes global history into “chunks” of information that students can easily assimilate, with frequent reinforcement and multiple opportunities for interaction. Thus, if a student is reading a complex text, the student must hold several bits of information in mind to understand it. Comprehension and memory are greatly enhanced if the information can appear in bite-sized pieces so that the student’s mind can more easily assimilate and absorb it. The effectiveness of information “chunking” has been well documented by recent educational research.