This is the story of the letter that the Prophet of Islam sent to the king of Iran. That letter invited the king to Islam. This book includes the text of the letter, and some of the events that occurred regarding to it.

Seyyed Mahdi Shojaei in 1960 in Tehran. He is an active author, novelist, journalist and screenwriter. He focused more on fiction and wrote many short and long story in children and adolescent literature and religious literature. He also has worked as a screenwriter and several films were made from his screenplays in television and cinema. Shojaee has effective activities in the field of journalism, too.