Rob began working with clay in the fall of 1971, studying at San Antonio College and the San Antonio Art Institute for the next four years. It was during this time that Rob decided to dedicate his work to God by signing each piece Praise God, Rob. In 1975, Rob went into the pottery business full time, currently maintaining a studio in San Antonio, Texas. He was chosen to do the pottery for the Papal Mass in 1987, and has made dinnerware for such notable people as David Robinson.