By Wilf R. Lalonde, John R. Pugh; Prentice Hall, 1991, ISBN 0134659643. Explores Smalltalk system as a potent and efficient prototyping and development environment. [Amazon.com]

By Timothy Budd; Addison-Wesley, 1994, ISBN 0201820803. First book on such programming. Many short chapters, easy to read, shows how unique features of each paradigm can be learned and applied concurrently via one tool. [Amazon.com]

This book describes techniques for designing and implementing multithreaded software applications.

By John R. Bourne; CRC Press, 1992, ISBN 025611210X. Introduces understanding and using object-oriented methodologies for engineering problem solving, focus on analysis and design. [Amazon.com]

By Ron Ben-Naton.

Book by Ken C. Pohlmann.

Interview with Programming Ruby authors, The Pragmatic Programmers. Amazon.com.

By Chamond Liu; iUniverse.com, 2000, ISBN 1583484906. Programmer's guide integrates language with object-oriented design solutions; focus: practical alternatives, trade-offs. [Amazon.com]

By Trevor Hopkins, Bernard Horan; Prentice Hall, 1995, ISBN 0133183874. Full guide with what users must know to start writing applications. [Amazon.com]

Addison-Wesley; 1989, ISBN 0201113716. Paperback. [Amazon.com]