Ben Greisler

Arek Dreyer (Chicago, IL) has been an Apple Certified Trainer since 2002. President of Dreyer Network Consultants Inc. in Chicago, Arek delivers courses and provides training around the world, both in the classroom and at events like the MacIT® Conference and European Macintosh System Administrators Meetings. Arek provides consulting, troubleshooting, and integration services for customers that use iOS devices and Macs in complicated environments.

Ben Greisler (Exton, PA) is the owner and technical lead of Kadimac Corp., a firm specializing in the integration of iOS and OS X into enterprise IT settings. Ben is an Apple Certified Trainer, author, consultant, and lecturer who has served on the Advisory Councils of the Apple Consultants Network and MacIT® Conference. Together Arek and Ben have collaborated to write several titles in the Apple Pro Training Series including OS X Server Essentials 10.9.