This unique guide book explains and teaches the concept of trustworthy compilers based on 50+ years of worldwide experience in the area of compilers, and on the author's own 30+ years of expertise in development and teaching compilers. It covers the key topics related to compiler development as well as compiling methods not thoroughly covered in other books. The book also reveals many state-of-the-art compiler development tools and personal experience of their use in research projects by the author and his team. Software engineers of commercial companies and undergraduate/graduate students will benefit from this guide.