Jack Hartmann is an American children’s singer, songwriter, author, keynote presenter and workshop leader. As a counselor, social worker and trainer, he worked twenty-five years with children, families and human service professionals.
Jack Hartmann has written and recorded over 500 songs for children on 25 albums. he has also written a wonderful sea-life counting picture book for children titled Over In The Ocean. His highly regarded educational songs are used by teachers and sung by children in schools all across the United States and around the world.