Programming Language: Principles and Paradigms focuses on designing, implementation, properties and limitations of new and existing programming languages. The book supports a critical study of the Imperative, Functional and Logic Languages focusing on both principles and paradigms which allows for flexibility in how the text can be used. The instructor can cover the fundamentals in principles and then choose paradigms of the text that he or she wishes to cover. Comparative study of implementation of various programming languages like C, C++, Java, Lisp, ML, Ada etc. In complete book the concepts of designing of languages are discussed with examples and programs of frequently used languages like C, C++, Java, Ada, ML and Lisp.