The third edition of Engineering a Compiler covers the most recent advancements in compiler technology, and new chapters on semantic elaboration (the issues with generating code from the ad-hoc syntax-directed translation schemes in a generated parser), runtime support for naming and addressability, and code shape for expressions, assignments, and control-structures?are all covered. Keith Cooper and Linda Torczon, eminent educators and researchers, have updated this well-known text with a novel approach to learning crucial techniques for building a contemporary compiler, combining fundamental principles with practical insights from their own experience building cutting-edge compilers.