[Dr. Avijit Roy is a Bangladeshi-American blogger, published author, and prominent defender of the free thought movement in Bangladesh. He is an engineer by profession, but well-known for his writings in his self-founded site, Mukto-Mona鈥攁n Internet congregation of freethinkers, rationalists, skeptics, atheists, and humanists of mainly Bengali and South Asian descent. As an advocate of atheism, science, and metaphysical naturalism, he has published eight Bangla books, and many of his articles have been published in magazines and journals. His last two books, Obisshahser Dorshon (The Philosophy of Disbelief) and Biswasher Virus (The Virus of Faith), have been critically well-received and are popular Bengali books on science, skepticism, and rationalism. }