E. Wayne Hart 
Feedback in Performance Reviews [PDF ebook] 

Effective feedback is one of the most important components of successful performance reviews. Feedback is assessment data that either supports continuing to perform in some manner or targets a desirable change. This guidebook will help you provide performance review feedback that will be well received. It explains three feedback principles and four different types of feedback. Each of these four types is effective when used at the right time and for the right reasons, and they can be used in combination. This guidebook will help you understand when to use the different types of feedback and how to frame a complete feedback message. The rest is practice