Dr. John Gillis, Jr. is the best-selling co-author of Powerhouse: 13 Teamwork Tactics that Build Excellence and Unrivaled Success, and an acclaimed business facilitator who founded the pioneering leadership development consultancy LeadershipX. The world's leading organizations look to Dr. Gillis to provide them with the practical knowledge needed to improve their performance by focusing on key issues. In his decades as a global management consultant, he drove growth at dozens of blue-chip companies across a wide spectrum of industries, including IBM, American Express, Dell Technologies, PayPal, and Verizon, among many others. As the Principal of LeadershipX, Dr. Gillis created a next-generation, digital, and high-fidelity business simulation to engage, immerse and develop global executives, and builds collaborative business relationships with clients by consulting on strategy / board alignment, talent management, change management, and organization development. Giving back to the community, John was on the Board of Wonders & Worries, President of the PennCLO Doctoral Alumni Network, Scout Cub Master, coach of numerous sports teams, and the founder and president of non-profit CampLIFE! He lives in Austin, Texas, with his wife and four children. He received his doctoral degree from the University of Pennsylvania's Graduate School of Education and Wharton Business School.