The book "Understanding Social Engineering Based Scams" offers a comprehensive analysis of current trends related to email fraud and presents tools and techniques to identify them. It highlights automated countermeasures based on a deep understanding of the persuasion methods used by scammers. The work addresses both scams targeting consumers and those affecting businesses, providing detailed case studies on topics such as Craigslist scams and Business Email Compromise scams. This book is a valuable resource for professionals, decision-makers, and researchers, as it offers alternatives and complementary tools to the currently deployed email security solutions and focuses on the metrics of fraud. It is aimed at security professionals as well as advanced students interested in data protection or applications of computer science.