This text investigates the fundamental principles of object-oriented programming through the specific implementation and syntax of the Smalltalk language. Lewis J. Pinson, an experienced computer scientist, provides a structured pedagogical approach to understanding how objects, messages, and classes function within a dynamic computing environment. The book argues that mastering Smalltalk provides a conceptual foundation for all object-oriented development by emphasizing the interaction between objects rather than procedural instruction sets.

Experts recognize this work as a foundational text for those seeking to understand the historical and conceptual roots of object-oriented programming. Readers frequently note the clarity of the prose, which makes complex programming paradigms accessible to students and professionals alike.