Complex sentence: The Roger Richman Agency, Inc. is a licensing agency that specialises in licensing the use of the imagery, persona and likeness of various well known entertainment celebrities (eg. Steve McQueen) and historical personalities (eg. Sigmund Freud, Albert Einstein).
Split into simpler sentences: The Roger Richman Agency, Inc. is a licensing agency that specialises in personality rights. It licenses the use of the imagery, persona and likeness of various well known entertainment celebrities (eg. Steve McQueen) and historical personalities (eg. Sigmund Freud, Albert Einstein).