Questions that drive interest, applications that illustrate concepts, and the tools to test and solidify comprehension. 
Students come into their first Economics course thinking they will gain a better understanding of the economy around them. Unfortunately, they often leave with many unanswered questions. To ensure students actively internalize economics, O'Sullivan/Sheffrin/Perez use chapter-opening questions to spark interest on important economic concepts, applications that vividly illustrate those concepts, and chapter-ending tools that test and solidify understanding.