Books for Learning Object-Oriented Programming in IDL

QUESTION: Can you recommend a good book for learning about object-oriented programming in IDL?

ANSWER: There are no books specifically written for object-oriented programming in IDL. (Although there is a chapter on creating objects in my IDL Programming Techniques book.) But the book I continue to like for learning about object-oriented programming is Object-Oriented Design Heuristics by Arthur J. Riel, ISBN 0-201-63385-X. What I especially like about this book is that you don't have to know C or C++ programming to understand the concepts. I found it easy to take what I learned and apply it directly to IDL.

Once you have learned a bit about object-oriented design, you will also want to read Design Patterns: Elements of Reusable Object-Oriented Software by Erich Gamma, et al., ISBN 0-201-63361-2. This book examines some of the best ways object-oriented programmers have come up with for solving typical design problems, especially with respect to objects communicating with one another.