Before you sit down to write this year’s self-assessment, peer review, or employee evaluation, it’s worth taking some time to consider the impact that performance reviews have on a person’s career trajectory. While you’re at it, pay special attention to where bias might emerge and, more important, where it can be interrupted.

When messages get mixed at work, the consequences can range from mild annoyance with a colleague to a botched deal for a new client. Beyond the business consequences, think about all the energy and time we waste trying to figure out how other people work.