Book excerpt: Along with the growing use of 360-degree feedback in organizations today, there is much disagreement over how it should be employed: strictly to help the manager develop or also to help those who work with the manager decide such issues as pay and promotion? This publication features the insights of a group of experienced professionals on both sides of the issue. To set the stage, George P. Hollenbeck, a management psychologist and adjunct faculty member at Boston University's Graduate School of Management, discusses the popularity of 360-degree feedback today.