This document provides an overview of best practices for service desks. It discusses key performance indicators (KPIs) that are commonly used to measure service desk performance. The document emphasizes that while measurement of KPIs is important, analysis and action are also needed to improve performance. It presents a model for service desk best practices that includes strategy, metrics, human resources, and marketing. Benchmarking data from over 3,000 service desks is also referenced to illustrate industry standards and best-in-class levels of performance.