John has written Cloud Computing with VMware vCloud Director, Foundation for Cloud Computing with VMware vSphere 4, and Deploying the VMware Infrastructure, all published by the USENIX Association, where he currently is a Board of Directors member at large. John regularly presents at VMworld, VMware Partner Exchange, and USENIX conferences. He is a VMware Certified Professional and one of the first VMware Certified Design Experts (VCDX 001). John holds a Bachelor of Science in Computer Science from SUNY at Buffalo, NY. He can be followed on Twitter at http://twitter.com/vcdx001.