This book investigates the fundamental principles and practical applications of programming within the NeXTSTEP operating system environment. It aims to provide a comprehensive guide for developers seeking to leverage the unique capabilities of the NeXTSTEP platform. The author, Simson Garfinkel, draws upon his expertise to elucidate the intricacies of object-oriented programming as implemented in this influential system.

This text is recognized as a foundational resource for understanding NeXTSTEP programming, reflecting the technical depth expected from its subject matter and author. The detailed scope suggests a text aimed at developers with prior programming experience looking to master a specific, albeit historical, platform. Its focus on core principles and practical application indicates its value as a technical reference for those engaged with or studying the NeXTSTEP ecosystem.