As a successor to The Design and Construction of Compilers, first published in 1981 by John Wiley, this book retains the same basic approach of the earlier text but looks at compiling a wider range of languages, and is particularly concerned with the implementation of high level programming languages, especially 'modern' languages such as ALGOL 68, Pascal and ADA. The book is soundly based on the underlying theory and the emphasis is on the design of compilers and the practical aspects of compiler writing. Compiler writing is discussed in an integrated manner, including lexical analysis, syntax analysis, use of symbol tables, storage allocation, and code generation, without overemphasizing one aspect at the expense of others.