The author of the first textbook on film in Bangladesh titled Cholochitra Bidya, published by Bangladesh Film Study Centre in 2004, Hayat is also credited with another textbook on cinema as an art titled Chalachitra Kala, published by University Grants Commission in 2007.

But, he enriched his writing skill, contributing to various newspapers and magazines on film.

Hayat's book on the country's film history Bangladesher Chalochitrer Etihash (1896-1987), published by the Bangladesh Film Development Corporation, features a chronological history of movies, film activists, and historical incidents took place during the period with pictures.

Other books by Hayat such as Nazrul-er Chalochitra O Natok, Zahir Raihan-er Cholochitrer Patobhumi, Bishoy O Boishistha, Muktijuddha Bishoyok Cholochitra, Rabindranath O Cholochitra and Fateh Lohani-er Jiboni have nourished film apprentices and connoisseurs for the past three decades.

Hayat has a commendable contribution in establishing Film Study Centre in 1994 and in 2004 he joined as a teacher at the Film and Media Study Department of Stamford University.