Aloysius Aseervatham has been a teacher for forty-six years teaching in eight countries around the world which included Sri Lanka, England, Ghana, Nigeria, Malawi, Zambia, Papua New Guinea and Australia. He has written over twenty books on various subjects the main areas being mathematics, accounting, languages and religion. Leslie Aseervatham has been a secondary school teacher of mathematics, science and information technology in Brisbane Australia for over 20 years. A qualified chemical engineer, Les decided that teaching was his calling and enjoys educating the young students.Website https://www.aseer.com.au/