Lord Shiva is normally worshipped in the form of Linga Except for a few exceptions like Nataraja, Dakshinamurthy etc, he is always represented in the form of Linga.
Deva muni pravararchitha lingam, Kama Dahana karunakara lingam, Ravana darpa vinasana lingam, That pranamai Sada shiva lingam.
