Book excerpt: The Handbook of High-Performance Virtual Teams is an essential resource for leaders, virtual team members, and work group leaders. The editors provide a proved framework based on five principles for working collaboratively across boundaries of time, space, and culture. Written by experts in the field, the contributors offer practical suggestions and tools for virtual team who need to assess their current level of effectiveness and develop strategies for improvement. This important resource also contains an array of illustrative cases as well as practical tools for designing, implementing, and maintaining effective virtual work.