**early life and training** yahya ibn osman, also known as yahya fahreddin, was a renowned turkish calligrapher born in istanbul in 1700. he was a student of anbarizade dervish ali and later huseyn habli, and was granted a license in 1723. **artistic contributions** yahya ibn osman is celebrated for his work on the qur'an and other religious texts, earning him the reputation as one of the most important calligraphers of the ottoman period. his masterful use of the naskh script, a distinctive style of islamic calligraphy, can be seen in many of his works. key artistic features: intricate geo…