The book "The 72nd Diver" written by Hamid Hesam, is about Karim Motahari's memories of Operation Karbala-4.

The unveiling of this book was conducted in the presence of Hussain Gharaei, the cultural vicar of the Iran Broadcasting University, Gol Ali Babaei, the researcher of the Holy defense, and the book's author, Hamid Hesam.

At the outset, Hussain Gharaei asserted that individuals like Hamid Hesam and Karami Motahari served as our cultural documentation for our holy defense and deserved more attention from the media and television.

According to him, it's crucial to create and disseminate high-quality information across all media, including books, movies, and photographs, in order to convey the memories of the Holy Defense. This book is written in an articulate and fictional style in order to complete the Holy Defense's puzzle.

The book's narrator, Karim Motahari, continues by pointing out that many of the young soldiers who went to the front during that time were so young that their parents were very worried about them.

He claimed that he couldn't comprehend their worries until he became a father himself. At the time, parents were always waiting for someone to bring them the news of their children's martyrdom, and their hearts were filled with nothing but waiting.

Furthermore, the book's author, Hamid Hesam, said that because it covers Operation Karbala-4 in its entirety, the story in this book differs significantly from that in his prior works.

He also noted that one of the most significant aspect of this book the memories of Martyr Ali Chitsazian from the words of Mr. Motahari.

According to Hesam, writing this book took over three years because of the volume of data and documents that had to be gathered in regard to the Karbala 4 operation.

This author concluded by saying that these wartime recollections and stories can become twisted in the future if they are not first told by the soldiers and commanders and then recorded.