Khwaja Shamsu d-Din Muhammad Hafez-e Shirazi, known by his pen name Hafez (1325/1326-1389/1390),was a Persian lyric poet. His collected works composed of series of Persian poetry (Divan) are to be found in the homes of most Persian speakers in Iran and Afghanistan, as well as elsewhere in the world, who learn his poems by heart and use them as proverbs and sayings to this day. His life and poems have been the subject of much analysis, commentary and interpretation, influencing post-fourteenth century Persian writing more than any other author. Themes of his ghazals are the beloved, faith, and exposing hypocrisy. His influence in the lives of Iranians can be found in 'Hafez readings', frequent use of his poems in Persian traditional music, visual art and Persian calligraphy. His tomb in Shiraz is visited often. Adaptations, imitations and translations of Hafez' poems exist in all major languages.