The book Whispers and Wailings is based on eight years of research. The author, Prof. Khan Mosleh, has lived and taught in various countries in the Middle East since January 1, 2012. In this long journey, he has come into contact with thousands of Bangladeshi immigrant workers and heard from them the tragic history of their lives. Although the workers are termed 'remittance fighters, ' they are neglected by their own country. In the Middle East, they are called 'Miskin.' These heroic workers sacrifice their happiness for 12 to 14 hours a day and 7 days a week and to bring smiles to the faces of their country and family.

When the author came in contact with Hossein, a domestic help in a neighboring house in 2016, he came to know the details of his daily life. After seeing Hussein up close and knowing his unknown life story, a latent desire arose in the author's mind that these workers need to tell their story to the world. He started recording different people's stories little by little and continues to do so. The book tells the life story of the workers and describes the geographical and social aspects of the Middle East.

The book includes an article on what you need to know about employment abroad, especially in Qatar and UAE. The book is dedicated to these immigrant workers. The author also wrote three books in the Bengali language, two original Attomoprokash (Self-revelation), Shonar Horeiner Khonje (Bengali version of Whispers and Wailings), and the Bengali translation of The Kite Runner by Khaled Hosseini.