Published in 2009 by Penguin (ISBN 9780143330691), The Cosmic Detective is a primer on modern cosmology for the general but scientifically inclined reader. It was selected as an official book by the secretariat of the International Year of Astronomy (IYA2009) declared by the UN General Assembly. The slogan of IYA2009 was "THE UNIVERSE -YOURS TO DISCOVER," an exhortation for us to reevaluate our place in it in light of the revolutionary discoveries of modern cosmology. The presentation of the discoveries of modern cosmology in this book has been praised by experts as well as others interested in the field. Catherine Cesarsky, President of the International Astronomical Union states,"The Cosmic Detective is an inspirational read. Bhaumik tackles topics with impressive scope, yet delves into them with spirit rarely seen. Marrying scientifically accurate text with accessible language is no easy task, but The Cosmic Detective is a proof that it can be done." Walter Thirring, the former head of the theory division at CERN, Geneva, has said, "The Cosmic Detective reveals another of Mani Bhaumik's talents: he is an outstanding science writer to complement his demonstrated scientific insight. He has the unique ability to distill from the voluminous material the essential concepts for the general public." Apollo 14 Astronaut Edgar Mitchell, in his foreword to the book, writes, "Mani Bhaumik builds on recent developments in science to bring us new pictures, larger views and insights about the magnificence of our universe." The book has been published in seven languages.