This book explores the experiences of simplification in a range of countries and jurisdictions. Each country chapterauthors authors analyse a range of manifestations of simplification, including tax systems, tax law, taxpayer communications and tax administration. They also review the longer term or more fundamental approaches to simplification, suggesting that in order to strike the optimum balance between simplicity and the aims of a tax system in terms of efficiency and equity, a range of complex environmental factors must all be taken into account.