Werner Joho was born in Baden, Switzerland and lives now close to Baden. He studied physics at the Swiss Federal Institute (ETHZ) in Zurich and later got there his PHD. He worked first on the large Proton Cyclotron, which produces with 1.4 MW the largest beam power, world wide. Later he was involved with the Swiss Light Source (SLS), an electron storage ring, producing high quality X-rays. He spent some time at other accelerator facilities, like CERN, MSU in Michigan, TRIUMF in Vancouver Canada and Berkeley, California.