Dr. Harbin trained in ophthalmology at the Wilmer Institute of Johns Hopkins. He has practiced ophthalmology with a specialty in glaucoma in Atlanta for over thirty years, where he obtained his MBA in 2009 at Georgia State University. His first book, Waking Up Blind, was published in 2009 and the Business Side of Medicine in 2013.

Duffy Jones, DVM founded Peachtree Hills Animal Hospital of Atlanta, GA in 2005 and is treasurer and past president of the Georgia Veterinary Medical Association. He was a finalist for the 2015 America's Favorite Veterinarian, an annual program of American Veterinary Medical Foundation. He has been an expert blogger for WebMD and Victoria Stilwell's Positively, and has been a guest veterinarian on Animal Planet's It's Me or the Dog. He serves as a resource to numerous animal rescue groups. His prior experience includes four years as a staff veterinarian in Cherokee County, serving at several local emergency clinics and an internship at Georgia Veterinary Specialists in Roswell. Dr. Jones received his DVM from Tufts University Veterinary School. He holds an undergraduate degree from the University of Notre Dame.