Dennis Herring is a producer. Some of the more notable bands who produced some of their songs with his help are The Hives, Elvis Costello, Counting Crows, Modest Mouse, Camper Van Beethoven, and Jars of Clay. Wikipedia
The definitive Wikipedia entry for Dennis Herring. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Dennis_Herring