Link Details

I'm a huge fan of the Framework Design Guidelines book. It provides great instruction on creating reusable libraries, based on Microsoft's design on the .NET Framework. But it's important to remember that guidelines aren't rules. Guidelines are recommendations based on a set of perceived best practices. Even a "DO" or "MUST" guideline can be broken in rare cases where following the guideline creates a negative user experience. In these cases, you need a pretty overwhelming case against the guideline to not follow it.