Get effective and efficient instruction for the REG portion of the CPA exam in 2021 Wiley CPAexcel Exam Review 2021 Focus Notes Regulation reinforce key concepts for the regulation portion of the Certified Public Accountants exam. Contained in an easy-to-carry spiral-bound book and designed to be easy-to-read and review, these focus notes will help you to learn and retain crucial accounting rules, formulas, concepts, acronyms, and more.