OpenStep is a landmark development. It brings together many of the features software developers have been seeking in a software development environment: true object orientation, open systems architecture, interoperability, robust class libraries, and the ability to separate the user interface from business logic in a way that allows applications to be deployed on multiple platforms, and over the World Wide Web. This book is an in-depth introduction to OpenStep and its use in developing business applications. The authors are experienced OpenStep developers and bring to the book the understanding that the process of object-oriented development is just as important as understanding the technology of object-oriented development. As a result, every potential OpenStep developer will find much of interest in this book.