Zhang He, also known as Klaus to his English speaking friends, was born and raised in Tianjin, China. In 2004, he completed his apprenticeship with the respected Mr. Kou of Wen Hua Ren Tattoo. He continued to closely with Mr. Kou for three more years until he began work at Xiao Jian Tattoo.
In 2008, Klaus fulfilled his dreams of opening his own tattoo shop. As his professional abilities grew, so did his reputation for providing quality work to a very large and very diverse group of loyal customers many of which continue to pay him frequent visits.
Klaus made his first trip to the United States in 2012 where he expanded his customer base, where a high demand for his work allowed his to schedule annual trips with advanced bookings in several states.
In 2015, Hai Ge asked Klaus to join him at his shop, Hai Ge Tattoo, the premier tattoo in Tianjin. Klaus and his apprentice have been work there together ever since.