PONTIAC, Mich. (AP) -- Eminem's mother has been sued by a man who alleges he helped her with a book about the Detroit rapper but was cut out of the profits.

Neal Alpert claims in an Oakland County Circuit Court lawsuit filed Monday that Debbie Nelson developed the book while she was under contract with him.

The lawsuit alleges they entered into a contract in 2005 in which he would be her agent and receive 25 percent of the gross profits.

Nelson couldn't be reached for comment Monday.

The lawsuit says "My Son Marshall, My Son Eminem" has sold 100,000 copies since its U.K. release last year.

The book is to hit U.S. stores this week.