However, he was shown a book prepared by Esmâ Ibret, and deemed it to be so good and so uncharacteristically "female" that at first he did not believe it was her work. On investigation however, he was persuaded of her talent and accepted her as a pupil. Esmâ Ibret and Mahmud Celaleddin subsequently married, in spite of an age gap of some 30 years.[7] Her husband worked on revising the scripts, and developing new scripts such as "celi sülüs".