Mohammad Sirajul Karim is a Director of Islami Bank Bangladesh Limited as representative of Excel Dyeing and Printing Ltd. He started his career as Chemist in Karnaphuli Paper Mills Ltd., Chandraghona and then joined as Research Chemist in Pakistan Council of Scientific and Industrial Research and then as a Lecturer in Bangladesh Agricultural University, Mymensingh in 1971. He was promoted to Professor and was there till 2009. At present he is the Professor of Chamistry and Chairman of Basic Science Department of Primeasia University, Banani, Dhaka. He obtained B.Sc. (Hons), M.Sc. (Applied Chemistry) and Ph.D. degree from the University of Dhaka. He obtained Post Doctorate Fellow from the University of Karlstad, Sweden. He was engaged as Guest Scientist, Senior Visiting Scientist and Visiting Professor in different universities including University of Darmstadt, Germany, University of Karlstad Sweden and Abo Akademy University, Finland. He participated in different seminars and training programs both at home and abroad. Prof. Karim has written many books including primary, secondary and tertiary levels. He is an author of a few books of poems and short stories. Dr. Karim has evaluated a few techniques for pulping and bleaching in the field of paper science and technology. He has large number of publications in different journals at home and abroad.