Interfaces and inheritance, a reading list

Interfaces are important, so before I get started with my usual examples here is a reading list for you to get started on:

• Interface Properties (C# Programming Guide)
• Explicit Interface Implementation (C# Programming Guide)
• How to: Explicitly Implement Members of Two Interfaces (C# Programming Guide)
• How to: Implement Interface Events (C# Programming Guide)

Once you read those, answer this question:

• What is the motivation for using Interfaces?