This book is designed to allow the introduction of comparative and transnational law issues into a federal securities law course. It can also be used as a standalone book for a course on global securities regulation. It begins with an overview of the globalization of securities markets and the policy issues this raises for securities regulation, followed by a comparative look at differences in national approaches to the substance of securities regulation, both with regard to mandatory disclosure obligations and with regard to insider trading. It also explores enforcement of securities laws---first looking at comparative approaches to government enforcement, next at the topic of how enforcement agencies in different nations cooperate with each other, and finally a comparative look at different approaches to the highly controversial topic of private enforcement of securities laws. This leads to a look at the reach of United States securities laws to transactions taking place abroad. Finally, it examines emerging securities markets and what lessons nations with such markets can draw from the experience of nations with developed markets.