A N Chowhan is a senior A-Level, O-Level and IGCSE Physics teacher with an overall teaching experience of about 15 years. He earned his M.Sc. degree with three high distinctions in Physics and Optoelectronics from the University of New South Wales, Sydney, Australia in March 2008. Since then he has been teaching A-Level, O-Level and IGCSE Physics at different renowned institutions of Pakistan, including Cadet College Hassan Abdal, University College Lahore (UCL) and Headstart School, Islamabad.
He authored his first book on A level Physics paper 5 in 2016. Teachers and students in about 35 different countries are using this book and benefitting from it. The book has been a best-seller in about 18 countries including USA, UK, Italy, Spain, UAE, Saudi Arabia, China, Pakistan, India, Malaysia, Mauritius, Nigeria, Tanzania, Zimbabwe and Singapore.