Industry and practical experience.We are a certified CompTIA training partner.
David Rush
Career IT professional and instructor. Senior CompTIA Instructor at the premier provider of
CompTIA books and video course s 13 years. NOC tech engineer. Raspberry Pi and Linux
hobbyist/instructor, Host of ADRAMADA, a weekly live tech stream featuring IT and a broad
spectrum of tech topics. Educational philosophy: Knowledge is power that should be
shared with all who want to learn.
Chrys Thorsen
Director of Technology and Training, Mena ICT Consultancy
Chrys Thorsen is a technology and education consultant with 25 years of experience. Her work has taken
her around the U.S. and overseas, including as a contractor for the CDC using technology to help fight
HIV/AIDS in Africa.
During her career, she has acquired 40 IT certifications, authored over 25 textbooks on a wide range of
IT subjects, including secure iOS and Android coding, and created an equal number of IT-related video
courses. When not working, Chrys enjoys reading scientific articles and experimenting with Internet-of-
Things devices. She currently lives in Virginia with her sister, her cat and her dog which, as she describes
it, "have the worst sibling rivalry imaginable."